I just trashed a city's infrastructure for the mob.

I was totally justified in doing so. My character was serving the Commercium, the entirely unscrupulous merchant's guild who runs the trading quarters in every major city. They plot and conspire all over the place to topple the ruling houses in the cities where they work, and they're pretty much the closest thing this world has to the mob. So now, because of me, they control the city's military as it descends into lawlessness, and they could probably take over whenever they like. The scary part is, that's probably not even the nastiest thing I'll do this playthrough.