My positions have been repeatedly posted and, I think, are clear:
Need = lack, due to flux and the attrition it causes on an organism, necessitating constant replenishment.
If repeatedly successful this replenishing produces excess which can be directed towards healing the consequences of attrition, towards growth, or towards procreation or creative activities.
So, excess is what is required for generosity or any form of purging.
Helping others is an expression of superiority as it exposes excess that can be wasted.
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γνῶθι σεαυτόν
μηδέν άγαν