Please Give This "Made Men" Blurb Some Context

This Yahoo article mentions a scene in Mad Men in which a pre-teen actress

I’m a little confused. I’m not a prude (far from it), but the idea of a basic cable TV show doing such a daring scene without there being tons of righteous indignation about it from the right*, doesn’t add up.

What’s the context?

*FULL DISCLOSURE: I’m not trying to make a political jab in CS. It’s just that whenever there’s righteous indignation about something in popular culture, usually it comes from the right.

ETA: I’ve never seen an episode of Mad Men, in case it isn’t obvious.

Don & Betty’s daughter starts acting out when their marriage falls apart. The little girl is caught masturbating:

If that’s the scene they’re referring to, you don’t actually see anything. Sally is sitting on the sofa in a darkened room, watching TV (a scene from The Man from UNCLE, in which David McCallum is chained up). There’s a close-up of her hands on her knees, scrunching her nightgown (but not pulling it up), then a close-up of her face–then the lights suddenly come on and the mother shouts something along the lines of “What are you doing?”