Actually, Bristol's pregnancy shows the IMPORTANCE of family values. To begin with, it demonstrates that despite the fact that Bristol was raised in a grounded, loving, Conservative home, the hedonistic filth from Hollyweird and the NEA crept in anyway. Thus, bombarded by images of sex and told by her school that sex before marriage is OK, she made a teenage mistake.
None-the-less, she understood that life is precious and that murder of her unborn child was not an option. She also realized that marrying the father of her child was the right thing to do.
As Robert Bork pointed out, there are Amish kids in Pennsylvania who know about Madonna, despite the best efforts of their parents.
Don't you know? Nobody except married people in their 20s and 30s got pregnant before "Hollyweird."