Yes, male fans are demonized for lusting after female idols. There’s security, police, bodyguards, managers, assistants, other staff and female fans who are there to guard against them.
But who is guarding the guards? The whole industry is tight lipped about any incident and they are happy that fans assume everything is fine. But every once in a while, like with Jessica, Nancy and Winter, something slips out and people are given the usual “nothing to see here” card.
Everything is faith based. That the same companies and staff that push their boundaries have enough ‘morals’ to respect the bodies of idols.