Well, it's not like the world assembled these folks for a "human race" supported mission, it was one corp, one man that chose folks based soley on achieving his goal, not benifitting mankind.
Imagine for a moment, Stargate's Dr Daniel Jackson, spending 10-15 years of his professional life, searching for the
Ancient's Lost Napkin Holder. But discovers the lost city of Atlantis instead. A ginormous ancient Ancient city-
that's also a spaceship that flies! And he immediately goes to his quarters, sulks, and gets drunk over not finding that darn
Napkin Holder. Cries over not finding a living Ancient. Ignoring the flying cityship with still
functioning computers and alien writing scribbled all over the walls. Tealc waltzs in and pours alien goo into his drink (wait, where'd he get it and why is he pouring it into Danny's booze?) Sullen boy gets his groove on with our lead female, just so she can wind up with an alien inside her that she has to extract... I mean...c'mon.
The motivations here are entirely at the mercy of a script that declared it would be a cool scene to show Lead Female extracting an alien from her body, and shoehorned a series of insane character actions to service that agenda. So the audience is frustrated. Given a choice, we would prefer to enjoy the movie, we don't WANT to nitpick the plotlines. All we wanted was a plot that made sense with characters-even if they aren't the cream of the crop, best of the best, noble brainiac science experts that money could buy.
The pedigree behind the camera, and blessed with a budget that gave them the resources to mount such a handsome production, should not be hobbled with the story problems pointed out here, among others over the last 5 years.