If you ask somebody to do something, he would do it on condition that he is rewarded for his services. What better reward than money? Actually there is no better reward than money.
( Bringing a smile on someone else's lips can be a reward too but what the hell !! who cares for that smile! )
For money one can kill (just like a lover kills for his love).
Relations take a back seat where money is concerned.
If a mother has 2 sons then the one earning more, becomes the favourite in the family because he is the bread winner. It doesnt matter how he is earning as long as he brings in the moolah!!
What matters is Money !