The unfortunate reality is that a lot of jobs don't exist to enrich the community, they exist for the exact opposite purpose. They exist to make the world a worse place. They exist to make people sicker, or cause more children to die, or maybe even to accelerate acts of war.

You don't need to do good things to make money. You can do bad things and make lots of money, and actually, that's typically a little easier. You can even create your own unique evils and then sell solutions to them.