BS...what do they mean contribute nothing to society?
The fact of the matter is that without financial services the economy would be nowhere as efficient as it is and we'd all be a lot poorer.
I think the main problem is that for some reason people don't equate finance with rich people. They don't understand that the capital for everything comes from rich investors. I think the concept is just above most people's understanding of how the economy works, they want to picture wealthy people as miserly old monty burns style men who are out to scam the world.
I don't think it's beyond people's capacity to understand, but it's easier to ignore facts than to face them in many instances.