I've got a number of Baylor friends and they aren't anything like you say. They are horribly embarrassed by what Baylor did.
Penn St. is a pretty shitty conference mate. After Sandusky, they hired Franklin, the guy who tried to cover up a rape at Vanderbilt (yeah, Vandy does it too). And any conference would take Penn St. As for cheating, future SEC mates A&M and Auburn join SMU among the cheatingest programs in NCAA history. On top of that, aggy is a cult.
Baylor's got a pretty bad history. Not sure Dave Bliss wasn't worse than Briles. After all, someone got murdered. But if you want pristine, you join the Ivy League. Wait, didn't they take bribes to admit rich people's kids as fake athletes? Kind of the opposite of normal where they bring in fake students to be athletes (see Oklahoma St. and Dexter Manley, North Carolina and Mary Willingham, Georgia and Jan Kemp).
So what's it got to do with conference realignment? Absolutely nothing. Its about dollars.