First of all, I think where we come from the same page is to think that enterprises and entrepreneurs do not need politicians to get it going. That is a principle many people share. Of course, you need rules and regulations but less of them if the people involved in enterprises have a good understanding of working environments and are grounded human beings. That in itself is a can of worms. 

As I said elsewhere, I expect technological progress to continue. 

To sell something in this day and age, you have to be able to talk well, to sell it through the media. Even the last piece of junk is sold if you present it skilfully in terms of advertising. 

You write success stories and the people with the money to do so have the PR done for them, you never really know exactly how much genius is behind those you have named here (by the way, all are celebs). They are all far from you or me. 

Future ideas can be sold because you can't put them to a practical test if they are complex. How good an idea and its application is is not shown beforehand, but afterwards. With uncertain time spans.

Of course you can understand the principle of a spaceship engine, but you will not be able to fly it without training, nor will you be hired for the ground crew as a non pro. 
You can read a lot of theory about soil microbiology and still you won't be able to do much with that knowledge without working in the field, unless you do countless experiments and evaluations on real soil and see how plant and insect life create a context. To be really good at a profession, you have to learn to master it theoretically *and* practically. This requires a lot of time. 

In my third training, we only had practitioners as teachers. They were all actively working in their professions and it was noticeable because teaching came easily to them. They taught the theory but could give numerous practical examples (best and worst practices), completely different from what I knew from school lessons in the past. 

The internet makes us quite good theoreticians in many things. We learn a lot and the many things we can talk about. But the more we know, the more we also know how little we know. However, all talking without an active working environment is random communication on the internet, so we are stuck with exchanging theories.

You can't do any of the things you just listed without being part of a company, surrounded by experienced colleagues who, in the best case, can assess the weaknesses and effects of a planned application well through years of practice in their profession and give you feedback. For any company, you need a lot of brains and experienced people who not only have technical skills, but also leadership qualities. 

If you have never built a road, never designed and field-tested a chemical rocket yourself, are not an expert in robotics, never worked in a steel mill, you are nothing more than someone who has a high level of theoretical knowledge but no professional experience. Without these years of experience, you cannot check whether your theoretical knowledge corresponds to what you do in practice.

If you were to set up your own company, would you hire people who had no professional references but only said that they got their knowledge from the internet? Would you hire them if they presented you with interesting theoretical papers and scientific texts from different disciplines and said they had read and understood them all? You would want to know something about their work experience with the subject matter they were dealing with and something about their failures and successes so that you can assess whether you are looking at a dazzler or not.

Even the already automated packages in programming applications always need constant review and debugging of their codes. So, things have to be constantly worked on. There is no end to it.
The only thing where you can simply set something in motion as an automated package without needing the approval and cooperation of several people is a theory building, but not a real building. That's where reality and thesis meet. Unless, of course, you are a tyrant, for example, and don't need to ask anyone's permission or knowledge and just order an automated package like that, of course it's possible. 

All you and I are doing here right now is expressing a public opinion and arguing about what might have or has had an impact and how. By doing so, we influence the views of those who may read us here. In doing so, we become opinion agents who, in the time that they make their views available, do not undergo a single practical professional lesson in this or that discipline that they discuss here. 

One question at last: 
Have your sons ever listened with interest to you when you where theorizing? I made the experience that my son doesn't give a damn about us parents arguing form acquired theoretical knowledge. He starts to listen when you tell him anecdotes about your professional life or other experiences you've had. 

Also, I see that the two of us give each other the greatest respect in terms of real life stories and neither you can respect my theoretical knowledge nor I can respect yours when there is nothing behind it, like a real company or enterprise. 

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Thank you for clarifying what you understand by "paradise". It's a loaded term. I don't have the time right now to further comment. We are leaving town in a few hours.