I was going to respond to Sean on that.
I felt that way after watching the first four seasons over, a few weeks back.
(I got all the dvds for free from my local library, also got to check out the new Springsteen cd, and I have the new Jack White on hold, should have it in couple of weeks, great library system for cheap bastards, like me)
anyways, in previous seasons Pete really fell on his sword for Don, when he lied for him and said they lost that big defense account, when he canceled it because could not get security clearance. All of Don's cheating on Betty. By all measures she was a decent wife, if he would only give her a little more. You may recall how well things went on the Paris trip.
Pete treated his own phoney family much better than Don treated his own half brother. Don leaving the house to sleep with Sally's teacher was an all time low, and even bringing her to his house, showed a callus disregard for Betty and his children.
At this point, I do believe it is pointless to argue their respective decencies.
So about last night. Yes, last week he did seem to care about Joan, he took her out for a drive and a few drinks when she was down. I did note that.
He also left her at the bar and suggested that she let some random guy that was giving her the eye, take her home.
I don't really think there are any truly decent men on Madmen, except for Ken Cosgrove, I believe he is the only man that has not cheated on his wife, and seems to have a decent marriage, he also has been supportive of Peggy, even thought she does not seem to care that much.