Yes is correct, when you are with a group and they are always agree with you, will create a false idea about your self, you will think that probably you are the best person in one area and if another person confront you with a second idea that is totally in disagree with your point of view, 100% that you won't reconsider the ideas of critics that other persons are providing you. To develop yourself we need to take critics from others to learn and be better in the future.