It's encouraged sometimes though isn't it. My dh has to go to Japan quite regularly and the bosses there actually send prostitutes up to his room!!! He has made it clear he is not interested but they do it every time! He has to be really blunt with them to get them to leave.
Also, when he goes to Czech Republic with work. The bosses there take him to a naked strip joint with special services available upstairs. He refuses to go in and goes back to his hotel. Even if the bosses are unhappy with him he's adamant hes not going to put himself in that position.
He's a good boy