You can't tell me that John didn't care about his family. But here's the thing: you can love your family, your kids, with EVERYTHING you have, do anything for them, including selling your SOUL to save them.
"You can break my soul. Take my life away. Beat me. Hurt me. Kill me. But for the love of God, don't touch him. THIS is how much Dean Winchester loves his brother.<<<<Oh god imagine if Sam was born a girl! He would be so much /worse/
Cowboys and Angels (A Dean Winchester/ Supernatural FanFiction) - Chapter 1: Hey Pretty Girl