The funny thing about criticism is that it can be directed towards anything. At one moment, you can say something is good and in the next second argue why it is bad. Against the sword of criticism, anything can be good or bad, right or wrong, and it is often used to disprove someone who claims that something really is good or bad. At the same time as it laughs in the face of high-minded idealism, it cuts down the underpinnings of corruption. Perhaps all this is not for the sake of finding some one, easily defined truth, but to broaden people’s perspectives, to show that one greater truth is that there are multiple sides to any issue, unforeseen effects, uncertainties where you thought there was certainty.
However, criticism can be bypassed when an issue comes up that you feel is important enough to act on – when you don’t need to cast tons of doubt on it. When action is needed, rather than thought, and you’re willing to take the consequences on your own shoulders, criticism can do nothing besides inform your actions as they take place. For some things, it cannot stop you.
Furthermore, critics can fall into the trap of being insensitive and cruel. If they deliver their truth with no thought of how it will be received, it can cause a whole lot of distress if that person is not ready to receive critiques. At this point, the person being criticized can shut out all further input, despite the potential benefits.