What does 'exert' mean?

The term 'exert' generally means to apply or use (force, influence, etc.). In the context of the content provided, 'exert' refers to the act of applying influence or pressure. When it's said that people can 'exert too much influence', it means they can have too much sway or control over the decision-making process, potentially steering it in a direction that may not align with the final vision.