There’s no denying we all need it. Only constructive criticism can uncover and shed light on the things we are too blind to notice about our own work.
But criticism for the wrong reasons is no help to anyone.
Regardless of what field you work in, being criticized for political reasons is not helpful. When someone uses your work as a platform for displaying their own opinions and furthering their ambitions you are probably better off ignoring them.
Another annoying phenomenon is when people critique for the sake of it. They are asked to give an opinion, but really have nothing substantial to say, and desperately find some odd thing to comment. They just can’t settle for admitting they are blank. When they speak it isn’t criticism they voice, it’s vanity (and skin-saving).
Then you have the jealous. They’ll find ways of criticizing you because, with or without their own awareness, they envy you and your work. I’ve found that they tend to pose as the devil’s advocate (a method I wholeheartedly support btw), but instead of looking at the idea and concept in a bigger context, they linger (too early) on details that are not necessarily important to the composition of the whole at that stage.
These distractions are important to recognize, because they are an itchy blanket you are going to have to get beneath to see the real faults and drawbacks of your work. My experience tells me you are going to need that.