It has? This literally happened to Oakland, CA (a few transit stops away from SF) months ago where the ex-mayor and a cadre of her backers were indicted by the FBI. I think you've been in NYC for too long if you think NYC is uniquely bad for transit due to corruption and geo factors. The Bay Area has hills and mountain ranges everywhere and has a literal ocean on its West side. Chicago is built along the Great Lakes and has ridiculous wind gusts and wind chill in the winter.

Most older US cities were built along rivers and other natural features because rivers are flat and most natural features are opening/closing points for trade routes between areas. Newer sunbelt cities are probably the ones that don't have these issues because they were built in less challenging geography.

Fair but also hardly fair since Adams had nothing to do with building NYC transit infrastructure.

Putting aside your attempt at humor through exaggeration, I don’t see any evidence at all in this discussion that the city is uniquely corrupt. Generically corrupt? Sure I can live with that.