what's the very good reason? places with massive poverty have also had an exploitative wealthy class. you don't take all their money eliminating incentives. the billionaire didn't work harder than the multi millionaire. that was luck.
money can be used in more ways than that, and nobody is 100% immune to propaganda nor will we ever achieve near immunity to it in most of society. I agree about educating the public interest this direction, it's essential. but it will never be enough.