Most of the time, what non-scientists do in the world of Science is what is called "re-inventing the wheel". Most of the rest of the time, what they do is called "mistakes". The rare time that a regular guy does something original and useful, it's called "a fluke"...
See, that's what I'm talking about. I really don't think this is true. I believe that the "regular guy" can come up with things scientists wouldn't have even dreamed of, without reinventing a wheel.
Certainly they can, and do (as my quoted statement declares), just not very often in the grand scheme of things. Look around for a while and you will see thousands of backyard inventors reinventing the wheel or the hovercraft or the solar cooker or electric car or chatbot. Sure, every now and then one does something amazing and creative and profitable, but that's a fluke. Sure he worked hard and studied his craft, but that's unusual.
Most of the time it's folk who think that their "creative ability" can replace years of hard work. Nice dream.
Often people come up with what seems like a great idea, but never have the resources to test it and find out what a good engineer could have told them. There are reasons why some good ideas are not implemented.
I've done it. My whole life I wanted to be an inventor, my first big idea was the ram jet helicopter. I drew detailed diagrams in 5th grade. Then I found that it had been build by Sikorsky before I was born, spun off a few dozen rotors, killed a guy and was replaced with better ideas. (Actually, my memory of this cannot be confirmed. I find that Hiller made a working RJ helicopter about the same time, but abandoned it because of fuel consumption problems. I don't find the story I remember.)
Good idea shot down by the Laws of Nature.
I have stated several times that creative work can and is done by non-professionals, but you missed those parts of my posts. Perhaps I was not clear enough. But the fact that you missed it is a symptom of what many professionals have to deal with. "It's a great idea, but you forgot that friction will make your perpetual motion machine slow down over time." "Good plan, but the cost is greater than the savings."
That's why our society invented those "noise filters" I've been talking about. Many people want their ideas to be granted filter free passage, and that might be a good thing once in a while, but the average benefit is just not there. Accurate bookkeeping advocates against it.
99 time out of a 100 is not good odds. Sure, that 100th time is really cool, but you can't make a living on that kind of gamble.
The "regular guy" with a truly good idea, should invest his own money and make a marketable product. He takes the risk - he gets to reap the benefit. That's the "backdoor" past the noise filter.
Every other month I see another of my good ideas in the "What's New" pages of 'Popular Science'. I didn't do the work required to produce a marketable product.
Sony did it instead. That's called "bad luck"...