Buy cheap and sell high is a rule of business, and when you control enough money and enough banks you can always manage that a stock you want shall be temporarily cheap. No value is destroyed for you - only for the original owner.
Ida Tarbell[On dishonest business methods:] ... frequently the defender of the practice falls back on the Christian doctrine of charity, and points out that we are erring mortals and must allow for each other's weaknesses! - an excuse which, if carried to its legitimate conclusion, would leave our business men weeping on one another's shoulders over human frailty, while they picked one another's pockets.
Ida TarbellMy final comment is that I still believe this man [John D. Rockefeller] is corrupt and he used unfair ways to become wealthy, all he cared about was his money and wasn't considered.
Ida Tarbell