And why not? Have you ever had a dough product made without salt? It tastes flat and horrible. You need the salt to bring out the flavor in the dough. That is actually one of the best examples where salt is a flavor enhancer.
Yes, some people like salt for salts taste. Those are generally the same people who oversalt everything and have high blood pressure problems.
I have eaten some foods without any salt added. And some foods I am totally fine with eating without salt. And then there are foods like I mentioned that rely on salt (or another flavor or spice) for pretty much their whole flavor. And I would bet money that if the common person was polled in the street they would tell you they sprinkle a little salt on their corn (another example) for the salt flavor, not to enhance the corn flavor.
I do not know enough to comment on whether or not people who like the flavor of salt are "generally the same people who oversalt everything and have high blood pressure problems".