So much paranoia on these forums, and so much forgetting about rational self-interest. What do you think happens to the fool who destroys the wealth of tens of thousands of hackers?
And what if they're coerced by an organization or government to run an attack, against their will? Or what if they're corrupt, and were offered much more money than what the pool brings? It would cost someone far less money to pay a pool to run a 51%, than it would cost to buy enough hardware to run a 51% attack. If these people or organization's goal was end bitcoin, paying a pool to do it would be so much cheaper than carrying it out themselves.