I really don't think it is down to gender, the fact you are male or female is quite irrelevant. It's more to do with the individual and their morals and beliefs, what that particular person thinks is acceptable, etc.

Some people don't seem have much of a conscience and treat other people badly. Where as others are very sensitive and genuine and wouldn't dream of hurting another person. I really don't think it is gender specific

I think you have to be pretty narrow minded to believe it's only women who are shits