Yes - we really can't know what people actually value until we've developed a relationship. What people value most highly also usually reveals a perceived weakness. 

Expressing what you value also allows others to more effectively reciprocate.

Anticipating what people generally will value is also difficult. You know the opportunity cost associated with growing anything is what you could do with that time, land & resources pointed elsewhere. Sometimes you just have to observe & iterate though.

Can you even imagine what this way of thinking leads to at scale?