Well, it’s easy to look back at ancient history, anywhere in the world, and see those folks as totally sexually depraved. I think we’re a bit myopic, since we live ages after Christian cultures spread the concept of “modesty” throughout the world, so we just take it for granted.
Nowadays, we seem to be returning to pagan standards, so maybe that explains the escalation of genitalia humor in our tv and movies. In another 50 years, I bet all the prime time sitcoms will look like something they have to put on after midnight on Cinemax now.
The big difference is, Aristophanes, with his troops of players wearing giant leather fali outside their costumes was at least funny and enduring. Even the old TV show Bonanza did a rather low key version of the Lysistrata once. No giant fali, unless you count the guns, and no blatantly sexual jokes, but it managed to stay true to the old Athenian comic’s story.
It's also a fact of literary and theatrical history, that as farces and debauches and raunchy, low-brow comedy gradually took over the Roman "theater", Roman letters produced no more men -- ever -- who wrote plays comparable to those of Terence and Plautus. Roman theater died with the last of Roman virtue, as the "values" of the forum overflowed and beslimed everything, like a backed-up sewer.