This is about more than just profit. But since you are so single minded, let me break it down for you.
There are two options here.
Option 1: RonPaul.com keeps the domain name. They continue business as-is, minus some people who leave because they think it's a dickhead move not to give the domain over (entirely irrelevant whether you agree or not, that's what we think). They make LESS MONEY.
Option 2: RonPaul.com gives its domain name to Ron Paul, and gets MORE VISITORS and generates MORE REVENUE as a result.
They have an absolute GOLDEN opportunity here. They are WASTING it.
You, by the way, should never go into business. You would lose a lot of money.