While technically true, I never mind such things.

Those cabbies are working-class people usually. They often have families, and need the extra money. All they get is usually a few extra dollars; which means a lot to them, but very little to us middle-class people, who would suffer no repercussions financially.

One could see the running meter as a form of a 'tip' or 'donation' - not everything has to be seen in the context of "being taken advantage of", which makes it very hard to live.

This is very different from surprise fees from banks and institutions, for which I can see how a person might feel taken advantage of.