See, I don't buy that. I don't think the "first family" is automatically news. I don't really give a shit about the guy my Representative happened to marry unless he stages a protest or heads a charity drive or something. Just existing <> newsworthy.
whether you buy it or not, she is considered important by the general population because she is married to the President.
do i agree with you? yes. does it matter? no.
is she important regardless? yes. besides being the First Lady, she is the wife of an important member of the ruling class, with money, contacts, and power. she is important because she uses her status of importance to be important. she is important because her status of importance is used by others who are important to generate more importance. the important part about being important is that it is important to always be important, unless it's important not to be, in which case you are important by not being important.
(the more i type "important", the more "Wrong" it looks.)
you apparently don't think she's important, because she's just the wife of the President. apparently, others place her as important because she's the wife of the President.
i'd say, regardless of her marital status, she is important because she is being used as a spokesperson for an agenda that affects the entirety of the country and quite possibly the world.
does she _deserve_ such importance?
does the rain _deserve_ to be wet?
i dunno, but if i stand outside too long my socks get soggy and i catch a cold.