Actually, even if you do buy those upgrades and are killing people left and right with your robot parts, it still makes sense. You mention that an hour after he talks against weapon augs, he's using augs to kill people. Well, that hour had a 6 month time skip and Jensen had to see the woman he loves taken away from him, his body crushed and then rebuilt in what looked like a terribly unpleasant series of surgeries.Grabbin Keelz said:One of the first few things I thought about while playing was how much of a hypocrite Jensen was, or maybe it was me. At the beginning of the game Jensen talks with his girlfriend (which took me awhile to figure out since he displays almost no affection towards her) about how he's against the company making military augments. There was even a demonstration of a weapon called 'Typhoon' which kills everyone around the user, Jensen seemed opposed to these inventions. Then, less than an hour into the game, Jensen himself becomes super augmented and even later uses the same exact Typhoon weapon he was against. He says every now and again about how he was forced to get the augments and he didn't have a choice, yet I was willingly getting new upgrades and prosthetics all the time.
EDIT: Ok so those upgrades are optional and aren't required in the main missions, so I guess that's on me.
It's not inconcievable that the whole experience left him less sensitive? That he's become more bitter and thoughtless when it comes to lives of others? So his old scrupules aren't as restrictive as they used to be? Also, that's your own choice to make. You can play Jensen without killing people, without using Typhoon. That's why it's calle a ROLE PLAYING GAME.