https://comptroller.nyc.gov/reports/the-human-cost-of-subway...
Any survey of New Yorkers and government services will tell you how much this matters.
The biggest problem is that the New York government at city and state levels is one of the most corrupt, oligarchic and undemocratic organizations in modern society. I cannot begin to describe how broken it is.
Here's a good example: https://www.nytimes.com/2017/09/18/nyregion/new-york-politic...
This leaves us with no levers of power over government decisions. When you take into account that the people who most heavily depend on the subway are also the poorest, we have even less power over the elected and appointed government class.