The problem isn't the numbers, it's breaking into the patronage and power networks. That's not a numbers game. It's a relationship, influence, and networking game. And some elements will be corrupt, while others will be about carefully cultivated appearance management.
Thank goodness some people get into politics anyway, but it is not a rational choice for a utility-maximizing actor.
It does take a lot of patience though; you won't get much done in the first year or two.
If we look at social movements of the past century, they weren't easy on the members but many of them were successful in bringing about change.
I don't know when it became fashionable to only do things that guarantee success within your lifetime and openly dismiss any other way of life but that's not how people who actually make a difference live.
For IT folks, sure, pack your bags, go to a tropical community built for people with money and live in paradise. What about everyone else?