The last consulting firm I worked for had over 70% of their revenue coming from two contracts, and neither contract used any of the tools or philosophies the consulting company claimed to espouse.
Ended up being the case that all the reasons I wanted to work there were just marketing messages and my sense of betrayal soured the relationship.
That the guy in charge of developers left about a year after we parted ways... every time I think about those people I wonder if he knew it was all bullshit or if he just got tired of dealing with attitude from stressed out developers and never understood why they were pushing back.