Sounds like the bulk of the investor class, who have very little if any creative input into the companies they trade.  There is certainly good and bad investment advice.  For those who create 'the market'(investment banks), there is no loss, just fees collected from the transaction.      Add the insult of the 'pass through' rule which allows hedge fund managers to be compensated and taxed by capital gains rates. (not earned income, as the majority of us are compensated for our work).  

Note, I am a 40 year investor and that's how most of my wealth has been accumulated.  But my wealth came from conservative funds, based on my my personal earnings from a salaried job, and never feathered my bed beyond trying to save for a livable retirement.   

Those that claim that all capital gains benefit 'the public' are delusional.   Investor cash out, the money is theirs, not the publics.  There is clearly a critical mass to buy/sell cycles that requires no earned income to grow your wealth.