In theory, no, but in practice, there's a question to the underlying motivation and ulterior motives if one is fighting for another's rights more than that other person is.

For example, to an American the invasion of Iraq may be officially an Operation for Iraqi Liberation, but to an Iraqi it may seem like control of OIL was the motivation. From a third party perspective you have to assume an American is motivated in self-interest, so if they seem more interested in the "liberation" of another group more than that group is itself, your duty is to question that motivation. The primary purpose of the US government is to serve American interests, so any reasons it gives of altruistic or justice-serving intent can be immediately thrown in the trash. I'm saying this as a tax-paying American citizen by the way.