Well, as Coach Meyer says, it's the simple fact that justice is anything but swift. Years go by before any action is taken. By the time the NCAA springs into action, the perps are long gone and the current kids and coaches, who may be clean and pure as the wind driven snow, suffer the consequences of others actions. That sucks.
Honestly, do any of us think that screw-his-pants-on-crooked Gene Chizik will be at Auburn in 2016 when the NCAA finally gets around to doing something (if anything)? Scam will be either on some NFL roster or in prison for fixing games. He won't care. The Right Reverend Newton will have his congregation to fall back on. The Auburn trustees and other creeps involved in this are probably going to have expired before the denouement of the case against them. As the jest goes, their interest in these matters will have greatly diminished by that time...
The horse has escaped the barn. The hen has been eaten. Auburn has gotten away with it. The NCAA did nothing while they had time to do so, even though they had overwhelming evidence of wrongdoing. Wrondoing which they had clearly established precedent for immediate suspension. They let it slide. Anything they do now (or even 5 years hence) is nearly meaningless.