Why indeed? It took 3 years after the prosecutions of Nixon's henchmen for Ronald Reagan to put many of them and their protegees back in business. If you relinquish power, precedents make no difference.
Why? Because they were not prosecuted hard enough, or high enough.
The precedent that was set (rather, reinforced) in the Nixon case is that current or former cabinet members will never see the inside of a prison cell.
And yes, precedents do matter.
- Jake If you only spend 20 minutes of the rest of your life on economics, go spend them here.
What the other half might have though in that event is, of course, speculation.