Because most of these Devs are horny little bastards, which massively impacts their writing on the negative side. They often project their fantasies on the screen, and don't care if this scenario would be realistic or not.
There are actually very few devs who can create a good story without blowjobs and gangbangs every corner.
To make a good, realistic story, you need a clear head.
And this game... It is second one, first is "Black Diamond" which was abandoned but recently got an update. I guess dev needs quick cash again.