Should these leaning seedlings be culled?

[throwaway]

First time growing from seed and on any scale past a single pot. Making a lot of mistakes as I go, particularly not starting enough seeds. Starting to think I won't have enough plants so I'm reluctant to kill off laggards. Trying to start a second wave of seeds but the seeds don't emerge whether I start them in a tray or start in a paper towel and transfer to tray. Anyway, have a look at these little guys and let me know if I should be separating them from the herd if they seem diseased or non-viable. Worth noting, particularly in the third picture, that the seedling is bending away from the light. Thanks!