If you are collecting money when you did nothing to actually provide the good or service, you are every bit as much a parasite as the guy who collects welfare from taxes raised on the sale of that good/service.
Stockbrokers do provide a service. They buy and sell securities for their customers. Some of them manage portfolios.
If you're stupid enough to pay a stockbroker a commission to do that then that's your fault not mine.
Guy, the whole stock exchange is a parasitic disease. It adds nothing to the economy, definitely a case of the tail wagging the dog.
But that's okay... I know you need to worship the plutocrat. All hail to big money, you peasants.
Wait, you peasants are voting for the black guy? DOn't you know he's a secret Muslim Socialist?