As far as I'm aware, Shannon wasn't even a programmer.
I'm sure Ritchie was pretty good at coding in the language he invented; AIUI, that language is pretty similar to the assembly language of the machine he designed it for.
I don't know anything about Buterin and Dean.
I'm sure these people all had brilliant ideas and insights, that I couldn't begin to match. But given an arbitrary dev task, I doubt they'd come close to 10x the performance of a reasonably competent dev.
And if my "problem" is not having heard of Buterin and Dean, I reckon myself a fortunate fellow - I can think of worse problems.
I think there are two kinds of companies that make tech:
1. Companies where all of the technical problems they need to solve can be solved by typical engineers.
2. Companies where some of the technical problems they need to solve are too difficult to be solved by typical engineers.
In the latter case you do need "special" engineers and you need to point them at these problems. But what percentage of companies fall into category #2?
Which is most of them. The main value of "special" engineers come from them pointing you to the right problems. Notice how all of Ritchie, Shannon, Dean and Buterin certainly fall into this category. They were all technically proficient enough, but that's not the point. A seasoned veteran would have coded circles around Buterin at age 20, which is when he invented Ethereum. The point is that the seasoned veteran didn't invent Ethereum. Similarly, Shannon's most influential work (that paper that basically invented information theory) is fairly elementary, and basically any geezer with a relevant PhD had had the technical chops for the paper. But they never would have written that paper in a million years.