You can put a man in a cage then toss away the key,you can even have 24 hour surveillance and he will still find a way to cheat!!
If a man isn't one to objectify women and actually considers them REAL human beings with REAL thoughts, feelings and emotions and he genuinely CARES for them and their well being, then NO he will not CHEAT.
There aren't too many one there and they are one in a million, but there are REAL MEN who will not hurt you, remain FAITHFUL and COMMITTED, and love you and honor you and hold you above all others. There ARE men like that, and I'm one lucky and blest woman to have one.
Are men tempted while living in this HIGHLY sexualized culture? OF COURSE. But being tempted isn't the PROBLEM. . . .falling to temptations is. It takes a REAL MAN to turn away from temptations. And it takes a REAL MAN to get out of a situation that could cause harm to his relationship, he is able to admit and recognize that he is being tempted and is able to walk away without destroying HIS honor to his wife or girlfriend.
The SHORT answer to your question: NO, not all men are like that.