Inequality comes not because men age better than women - they don't - but because men are allowed by society to be old and/or ugly and still to be seen as 'presentable'. Look at the number of male actors and TV presenters who are old or overweight! There are far fewer women who fall into those categories, although I do agree things are slowly, very slowly improving.
However, it isn't only media that's to blame. It's a fact that women are far more ready to overlook physical defects in favour of other qualities in men. Sometimes this is in a really healthy way - a woman is attracted to intellect, sense of humour, shared interests and outlook. Sometimes it's in a less healthy way where it's a transaction exchanging money and status for a 'trophy' partner.
How often, being realistic, do you see a woman partnered with a man who is significantly more attractive than she is? Even age difference relationships where attractiveness is at a similar level are much less common with the woman as the older partner. But the sight of an ugly man with a beautiful woman is nothing unusual.
We need to work to change all this, but that won't happen if we try to pretend it doesn't happen - if we deny beauty privilege. It's so often the beautiful people who spout the 'looks don't matter' and 'beauty comes from the inside' rubbish. I remember, aged about 25, being patronisingly told this by the extremely attractive thirteen year old daughter of a stunning female acquaintance of mine - it was humiliating, especially as she meant well and had clearly had this drummed into her as a good and kind thing to preach (obviously it wasn't for me to disillusion a thirteen year old, I just smiled and nodded along).
But people need to listen to the lived experience of the unattractive, and not try to pretend that we live in an equal society in this respect. It's very much tied in with male privilege and frankly, it's rotten to the core.