The Mad Men star is dismayed at the dumbing-down of celebrity culture in recent years, insisting being a ""f**king idiot"" is almost a guarantee of success.

And he's singled out hotel heiress Hilton and reality TV star Kardashian as emblematic of the problem.

Hamm tells Britain's Elle magazine, ""We're at a place where the idea of being 'elite' is somehow considered a negative. Whether it's Paris Hilton or Kim Kardashian or whoever, stupidity is certainly celebrated. Being a f**king idiot is a valuable commodity in this culture because you're rewarded significantly. And incuriousness has become cool... It's celebrated. It doesn't make sense to me.""