The pins should never, ever be bent.
That's actually wrong... if you look at the CPU socket the pins are already bent to a degree... they're bent at like a 45 degree angle for the bottom half then the top half of the pins stand straight up. How else would you ensure the pins make constant contact with a CPU? That's why when you install a CPU there is resistance and you can push down on it... that's also why there are clips that pull the CPU down into the socket. The pins are originally bent so they don't snap/break when there is a CPU installed.