yes and no.
there are certainly cops who attempt to "do good", who remain compassionate and honest even in the face of intense job pressures that encourage them to isolate from everyone-not-a-cop, there are cops who don't like cops, for that matter.
but as with politicians, it doesn't ultimately matter. because cops are a force of repression, regardless of whether individual cops are kind or not. it is the role of cop that must be done away with. which is why certain anarchists seem confused when they promote the idea of a body of people who are responsible for maintaining some kind of social order (or when they implicitly assume a kind of social order that would require or encourage such a body). more michel foucault for everyone! (his concept of the panopticon and the cop in our heads is very relevant here.)