Dana White protected Jose Aldo by saving him from an embarrassing defeat by overturning the official ruling. Aldo said post-fight "I agree with the result", so it's weird Dana overturned this. Of course, now that he has the power to declare his superior opinion to the judges, why would he protect Aldo but just nod as Jones (or GSP) walks away from a clear butt-kicking with the belt?
Aldo saying "I agree with the result" was Marlon's translation of what he said ... so unless you speak Portuguese, I'd take that with a grain of salt.
Dana decides on fights based on whichever will garner him the most reception...Mcgregor vs Khabib is a match nobody wants to see. No interest.