According to APC.com, 6 year (top off) A320 pay for Virgin America is $120/hr. Is Branson saying he will pay him $240/hr? At 70 hr. minimum guarantee, that is $201,600 per year, excluding any other kind of bennies.
According to APC.com, 16 year (top off) A320 pay for USAirwys is $142/hr. At a minimum guarantee of 72 hr., that is $122,688 per year, excluding any other kind of bennies.
I know about all of the Union stuff, and realize how pilots (most) feel about being unionized, but if the vast majority of Americans had the opportunity to get a roughly 40% raise, I doubt as though many would pass it up. I wouldn't blaim him for taking it, assuming that is the offer.
Sometimes you have to look out for yourself, and not everybody else. If someone has the opportunity to move on, and do better, I say all the power to them. People leave one job/company for another, all of the time, in other industries, for more money, etc.
One of the only reservations I would have with this, is where will VA be, 10 years from now? Will they still exist, or will they be long gone. What, if that happens, does Sir Branson have in store for Captain Sully?