Power and difficulty
A specific bias that Lesswrongers may often get from fiction[1] is the idea that power is proportional to difficulty. The more power something gives you, the harder it should be to get, right? A mediocre student becomes a powerful mage through her terrible self-sacrifice and years of studying obscure scrolls....
Love it -- mainly because it invokes one of my favourite paradoxes.
If you preach hypocrisy, and you are in fact hypocritical, than you're not a hypocrite. And if you aren't a hypocrite, then you are.