Did you talk to these dudes ? I remember a few guys being quite dull my internship. I think that old big corps are too removed from reality in a way. You make products and portfolios.. rewrite some shit in <platform of the day> that is clearly not or not clearly an improvement. After some point maybe you just throw in the towel and just coast along for the check.

Also one guy did actually lose it and was now the official monster behind a cubicle. AFAIK he was still there because of years of service and probably some deep system know-how lockdown that nobody wants to touch so he's in charge.