Information is power. If you're doing something wrong you want to find out. If somebody has some opinion about you - you want to find out. Make sure it's easy for people to give you information even when it's something bad about you.
That being said be careful not to go too far with it. People are only humans, in that they have their own interests, flaws, play power and status games and so on. More often than not criticism, even when it appears to be constructive, it's just a jab at you, especially if it's delivered in public. Nobody's work is perfect and hindsight is 20/20. Take everything with a grain of salt and be careful not to undermine your position in companies or your self image by being too welcoming about criticism.
That being said be careful not to go too far with it. People are only humans, in that they have their own interests, flaws, play power and status games and so on. More often than not criticism, even when it appears to be constructive, it's just a jab at you, especially if it's delivered in public. Nobody's work is perfect and hindsight is 20/20. Take everything with a grain of salt and be careful not to undermine your position in companies or your self image by being too welcoming about criticism.