Batman's ultimate fight against corruption, racism, and police brutality on a systemic level is more interesting, and yeah a few police will have to get beat down in the process as opposed to petty criminals or low-level gangs born out of poverty and lack of social mobility. Batman already does the social programs, he can also add the measures to ban housing segregation, redlining, and better school funding that isn't dependent on property taxes. This is where all the detective work and investigations come in. If it's a single film, a single issue can be focused on in-depth. If it's a series of films or a tv series, it could end up being like superhero The Wire.
