How often do we set benchmarks for ourselves without comparing with others??? There is always a hunger for higher salary, bigger house, bigger car, better lifestyle...
Always a complain on how small the house is, food is not the way we like it,  income is not sufficient. Even when we get something bigger n better we compare it with something even bigger n better and feel unhappy about it...My dad tells us, " Always look at people who are less privileged than you, rather than looking at people better placed than you"..
Obviously this doesn't mean that we stop working hard for a better salary for a better lifestyle but just a thought to keep us happy and also makes us realise how lucky we are compared to others...Comparison with "OTHERS",  we just need to choose these "others" smartly to lead a happy life