No, Walt didn't care about anything but his ego. He admits as much in his final conversation with Skylar. The whole point of the character was that he was an incredible egotist who sacrificed everyone around him and hid behind some mantra of 'just doing it for his family'. There are several points in the series where he has a way out, and he chooses not to because he doesn't want anyone else to take over 'his' business. Whenever Jesse starts doing well on his own, Walt drags him back into it; he basically kills Jesse's girlfriend, he poisons Jesse's stepson to force him back into it, and in the end, he doesn't even bother to make sure he is rescuing Jesse, because he is so blinded by his own vengeance. Walt is a horrible human being on every level and never gave a damn about anyone but himself and his incredible self--entitlement.
I hate Walt but even that's sort of unfair. Dude cared about his family, he just cared about his ego more.
this was walt's only redeemable character trait by the end, but even then every villain the show had cared about their families as well. mike, tuco, etc. ---