why do men beat up their ladies?

I have been reading and trying to follow the Chris Brown and Rihanna story, apparently I read some where that the fight was a result of Rihanna suspecting hubby Chris to be cheating on her, the argument started and Chris brown slapped her. The reaction from around the world especially from the showbiz zone doesn’t amuse me at all, tell me is it the first time a man is beating up a lady?
My young sister was too concerned that I asked her to tell me how many women in this world were being battered every hour and nothing was being done to help them out.
I have noticed with keen interest that the most battered women are those from the third world countries I know the developed world has to but the ratio is small as compared to the third world.
Most of the battering is by the way caused by domestic problems, a few days ago neighbor of mine was beaten by the husband reason being she caused the failure of their youngest child, how did this happened if I may ask? The husband claims the lady didn’t take time to teach the child hence the poor results. I find this awkward, I mean the child goes to school and besides he is in boarding school and if the man wanted the lady to educate the child then he should have let the child stay home and probably pay his wife the fees for educating his son.
I know there are a number of women being battered but what has been done to help is the question, in traditional African society, am told its ok for a man to beat his wife, I completely don’t buy this thought, why would the man be allowed to beat his wife and under what circumstances? Marriage I believe is partnership and also commitment so does it mean if you fail to agree, one then has the power to beat the other? Sincerely, I pray that this ends otherwise there is need for Gender equality be it at home or work, we ladies cannot just allow men to beat us up, we were all created equal and I have never seen anywhere that it’s written that it’s ok for the men to beat their wives, girlfriends and lovers.
Both sexualities need to coexist and if one is beaten and wiped out of this Earth, I wonder how the men will live, the good news is that other planets are being discovered to be having life, so the men might as well go there looking for women that’s if they can reproduce otherwise the planet may have to do without any humans.
Think about it, what’s the real reason behind men battering women…? Is it because women are looked at as the weaker sex or is that the way it’s supposed to be? Tell me….
Good day