Disturbed!

I waded in again,
Hadn't planned it, though!
The day had been good,
Without many hiccups!
Just dropping my musings,
That crossed my mind today!
The more I look around
What is it that I find the more!
It sure is a selfish world,
And, selfishness rules the world!
In the pool of selfishness,
Some poor souls get trapped tight!
Just one query props up,
What is the use of this in life?