LOL, of course not. Dark liquidity is detrimental to price discovery and market transparency, that's why Europe is trying to get rid of it. However, dark pools do benefit (or used to benefit, as they are being gamed a lot now too, as I described) large traders/funds who need to execute large orders without moving the stock.Sure, these pools exist for the benefit of mankind.
PS. It really depends on the definition of the mankind
