Recently quit working at C1 as well, and share the author's sentiments exactly.
Whenever I brought up whether the work we were doing might actually be harmful (even as a general question), coworkers would reflexively quip about what they're doing giving back to the community through outreach, or some other vague response that obfuscated the people behind the problems they were solving.
And of course, executives would just spam you with "Change Banking for Good".
I couldn't stand it.