Evolution is the process that preserves those who survived and left progeny, and chaffes away those who don't. The only measure of success in it is the survival.

It does not mean that attempts to make some rational models is worthless; quite the contrary.

Of course, there are many who tried things like these and failed; maybe many more than those who prospered. But there are those who tried something opposite, and fewer of them, if any, have prospered. So these inclinations of prosperous people have something to them, though not a guarantee.

If you take many such accounts of successful people and correlate them, you will find certain similarities; they, of course, are pretty well-known.