I'm not seeking to increase my power base at the expense of others. If I would get less money doing something that would make the world a better place, I would

I'm not seeking to increase my power base at the expense of others. If I would get less money doing something that would make the world a better place, I would happily choose this. Am I not human? I see this kind of answer as a kind of explanation widely disseminated to justify our economic system as inevitable, but which have very little scientific basis. For me it's wishful thinking. The kind of economic growth observed in capitalism and some of its characteristics like the cyclic crisis not related with natural changes like climate is something unique to our civilization. And it's a very new thing at the human history (less than 300 years). What will be the effects of these things at long scale is something still to be comprehended.