IMHO This is like status. Sounds smart but not much behind it... How do you know what are someone needs, maybe they evlolve? Maybe your need is to try a FAANG job and have first hand expiring that will change your needs to less material. Maybe one of your needs is to satisfy protestant ethics? And your need is to go beyond the first level needs... So I'd say the same way system purposes I'd defined by what it does. Your needs are defined by what your do.
Having said that, this type of philosophizing is nothing but an empty exercise in confusion. Everyone one is an individual an has his one subjective epirience, a person aspires to live his life as he best understands it.. anything beyond that is just nonsensical.