That's an interesting point. And to be honest, I'm not sure what the rationale was for including those terms (I wasn't involved with defining ResumeRDF or anything).
I'm guessing it happened because they "borrowed" a generic notion of "person attributes" from some other, less specific, source, and didn't really consider the legal implications you mention.
I guess it's an open question whether or not there's any actual valid scenario where somebody would want to put that stuff. It seems unlikely to me, but maybe in other countries or something? Hmmm... dunno.