MBAs are mercenaries, that's part of their formation. They fully expect to be working somewhere else when things start looking bad.

They are just doing what mercenaries have been doing for millennia : cost a lot in peace time, loot the population, and run away or cut a deal with the invader when the goings get though.

A good example is the Russian "Africa Corp" in Mali. Expensive, atrocities against the population and cut a deal with the jihadist to run away when they came last month.