It's not better to live a life without increasing your needs because as humans we grow and as we grow older so our needs too increases this is what makes life itself unique because a man without any sign of improvement in terms of his needs is not growing in life and such people will not achieve much due to the fact that they are comfortable with their present conditions which is something to be concerned about.
Is true that needs should be adjustable in terms of going up when important and reducing when not important but not when the need is not there and the person decided to increase it so actually Increasing your need should be determined by circumstances and not by just staying and decided to think about more ways one can be spending more money than the way they usually do before, however what I usually increase most times is the money that will solve the needs because inflation has made things regularly unstable for everyone so is possible that what someone would buy today might not be the price they would also buy on the following month so the person should be able to adhere to this changes because it could affect the needs.