The 7 deadly sins (pride, envy, greed, gluttony, lust, anger, & violence) are just an extreme want for all our
necessary things in life. We need food, companionship, and money in our societies. Procreation is needed
for the species.
All people are going to have desire for things be they natural or invented. So this explain the root or envy.
Even the Dali Lama said you have to have some desire (I'll put that in a later life lesson post).
Anger & other emotion are needed to guide & protect us. Thus violence is the only true sin above.
They can be overcome with virtues.