No, they do not. I would even go as far as saying that it is completely useless to have strength as a monk. Use the ability points you have to get your Dexterity higher, your Wisdom also needs to be high, and you will need some Constitution too.  If you are going to invest your points into strength, you will definitely regret it later, as that means you haven't put them into dexterity. This is the ability that actually determines your damage output when you are fighting.