They're not providing any service, they're temporarily manipulating the stock price for personal gain.
After they sell off their options and the price falls the losers are all the chumps w/ 401Ks and annuities.
So what if your life savings takes a 30% hit, it's all good.
That's what Marx once said about all factory owners, managers, clergy, and even parents for that matter.
Today's Marxists are now saying that all advertising is a waste and a drag on the economy, others say we need to get rid of pro-sports, and your gripe is the so-called "big money boys". In the real world back on the Planet Earth, if you think my boys aren't providing a service then you don't have to buy it from 'em. An awful lot of us do however and we're folks that profit nicely and are most grateful.