I guess it depends a lot o the place that you live. In my experience, the lots of "bad" done by our government cancels the bits of "good" they might have done.
Also, we must remember that many of the "good" things governments hvae done throughout history have been only done after the people demanded them and not without fighting against it first. Governments, IMO, serve to their own interests, the ruling class and their economy first; the interests of the people come in second as a means of "crowd management"
Its not that the person themselves cant be "good" but the act of hoarding and limiting access to a basic human need, like shelter, to use it as leverage in order to extort profit from others is wrong.
Landlord-ing is inherently bad it doesnt matter if the person doing it is the nicest person on earth.