The urge to save humanity is always a false front for the urge to rule it.
The most dangerous man, to any government, is the man who is able to think things out for himself, without regard to the prevailing superstitions and taboos. Almost invariably he comes to the conclusion that the government he lives under is dishonest, insane and intolerable, and so, if he is romantic, he tries to change it. And if he is not romantic personally, he is apt to spread discontent among those who are.
A good politician is quite as unthinkable as an honest burglar.
The whole aim of practical politics is to keep the populace alarmed and hence clamorous to be led to safety by menacing it with an endless series of hobgoblins, all of them imaginary.