People have a bad habit of pointing outwards at what they see is wrong in others. But all of that outward focus blinds them to their own bad behavior.
Nobody is perfect. Ubiquitous perfection doesn’t even exist, as everyone has their own idea of what that should be.
The point is that we are all flawed, and so we all have a chance to improve. We all get to grow. But we cannot grow if we aren’t taking the time to look at our own faults, and work on fixing them.
Mother Teresa said: “If each of us would only sweep our own doorstep, the whole world would be clean.”
We need a lot less of this pointing our fingers at the faults of others, (or at their “dirty doorsteps”) and focus instead on cleaning up our own lives. If we all did that, I believe the collective effort would indeed clean up the whole world.