Sins Three and Six

Of the sins, are three and six genetic, or are they learned?

Are our desires born onto our silver tongues, or are they earned?

Some people want based on who has those things, and how they make them seem.

Some people want what's shiny, to see others watch it gleam.

Some people want some things just so their enemies can't have them.

Some single-minded avarice can snatch people, can kidnap them,

While other peoples' deepest wants change slowly, over seasons.

Suffice to say that human greed knows all the forms and reasons.

It takes four quarters for a contest, and four decades for a rival.

Is wanting more than the other guy has a habit, or more primal?