It's just so much more offensive network trash, and this pretty much proves it. BTW, nastiness does not equate with conservative.
You obviously haven't watched it that much. What equals conservative is openly religous characters and more church going then has been on TV since the 50s. They poke fun at lots of leftists sacred cows. It's also extraoridnarily sophisticated and humane. What other show can work in refereces to Joyce and the like.