I'll tell you why. It's because this line of corporate work isn't about work or passion. It's about filling your day with tasks so you can justify your paycheck. I'm not saying this as a negative thing. It's just how the corporate world works.
Nobody is enthusiastic. I haven't talked to anyone at my work who is truly stoked about what they're doing, as in they'll go home and keep working on what they're doing.
There are no hackers here. It's just corporate culture.
These people are so deep into the corporate culture that they forget how to interact with people without an underlying guide or goal.