Cognitive Biases

I'd argue that's the outcome or survivorship bias, where people focus on the one winner or that time a thing worked and ignoring all the other failures. E.g. people think investors all swim in money because they only see the warren buffets of the world, when in reality there's thousands, millions of people who tried the almost exact same thing and lost some or all of their savings in bad investments.

Absolutely! It's called the Pollyanna Principle. In fact, there's a counterpart to all of these biases that are immensely helpful in certain types of therapy.