Another thing that happens is that social services (healthcare, DMV, probation office, welfare) move offices out of expensive transit dense areas to cheap far flung offices. Then local governments force bus routing to these places, it leads to a miserable experience for everyone involved.
The best measure of a transit project is "How many people use this per day". ie is it doing something valuable.
Note: I don't know of a solution for this other than more holistic government service planning. I do think it's valuable and good that those in need of government services can get there without a car. But it isn't always the sole fault of transit agencies that they have low ridership slow busses.