Vince Gilligan, Byran Cranston, and Walter White, have all said everything Walt did after turning down the money was for Walt's ego. They even said it wasn't for his family, it was for his ego. What more do you need to see that this quickly turned from about the family to Walt's ego.
I don't care what his primary motivation was. In the end the money he made was to benefit his kids and wife after he died. He wasn't slingin meth to buy things for himself. Yes he got a high off the fact he was a bauce and was getting respect. However, it still doesn't change the fact the money benefited his family.
It is never wrong to take care of your fam. BY ANY MEANS NECESSARY. It just so happens most of us are pussies and aren't prepared to go to the lengths Walt did, which is why ya'll nikkas are trying to demonize him.