Many of us are old enough to remember Max Wall. Then there was Kenneth Williams and the Carry On films. Comedians and wits have always included smut and innuendo, right back to antiquity. There is Viking graffiti in Maeshowe, which can only be entered in single file bent over in a low tunnel. It says something like ""Ingebjork the fair widow - many a woman has walked stooping in here a very showy person" signed by "Erlingr" I suspect Erlingr may have followed Ingebjork along that passageway with her short tunic showing all.
Pantomime - that staple for innocent aunties to take young children to at Christmas - is full of double meanings. I am willing to bet that the panto which Katek mentioned in another thread (her wicked fairy queen has managed to tear 20 inches in three layers of her net costume a couple of days before the first performance) is not immune.
If the hearers understand the innuendo, they already are aware of the second meaning, so are not being corrupted. If they don't understand it then they won't notice that it even is innuendo, so are not being corrupted in that case either.
Both of the instances in the OP may be innuendo, but are more likely to be exactly what they say. A sense of proportion is a useful thing.
Undisguised smut is different because it can be understood by anyone who hears it. There is more of this around than innuendo at the moment Those who broadcast it, online as well as on the airways, don't seem to have the subtlety to make it the least bit clever and amusing, just rude.