1st of all, i would like to say - not all man like to go niteclub/ not all men enjoy going to niteclub/ not all men can afford to go.
Niteclub in the first place is not as "dirty" as what many tot of. Of cos there are many classification.
I seriously hope you gals can try to u'stand the culture and need of men needing to entertain customers in a niteclub. Let me cite an example;
my friend once received a group of china customers who were here to discuss about a joint venture with his company. he actually brought them to places of interest like sentosa, east coast, zoo etc, these events took 3 days. He felt he had done so much and since the chinese had no complaints - he think the deal is done. As he was supposed to be the next in line for promotion, a done deal with the chinese would have virtually confirmed it. Never would he expect to hear what the chinese had to say about his entertainment when he was about to go into his boss office.
"John (not his real name) cannot entertain at all, bring us to places like sentosa - it was so hot and we had to act like we love it, feeling was terrible" Needless to say, the deal didn't go through so was his promotion.
Luckily for him, his boss was understanding enough. 3 months later, his boss brought him along to china for another deal with the same group of chinese. I'm sure you must have heard how the chinese entertain their guest. Meals after meals (XO, VSOP), he tasted every delicacy he could ever do. entertainment includes niteclub, KTV. during his time there, he learned the right way of entertainment (towards the chinese) in the niteclub, he is expected to conform with everyone's else action otherwise he would be deemed as not giving face and that means no deal.
Now, during one of the nite - he actually witness his boss (a super nice and homely family man) hugging, groping and fondling the gals (not that he like it) but he got simply no choice at all. Later, he learned that the chinese will take into offence if you reject their kind gesture.
No doubt such places are not for married man but if the need to (to support your family, your need of luxury, your kids) how many no can they afford say?