Privileged groups are a figment of our imagination, unless you mean ones who have used violence, intimidation, lies and cheating to steal things from others. Frigate birds are a good example of this lifestyle. IMO in a world where there is sufficient food to feed the hungry, it is unethical for hungry people to exist, and in a rich world it is unethical for there to be poor. When the divide between rich and poor causes extreme hardship among the poor, they invariably revolt. The French revolution is an example, and all the aristocracy were beheaded. The issue is not about jealousy, it is about survival.

Exactly. The ruling class would rather have WW3 than relinquish their power and wealth, even if they die too.

Privileged groups seldom recognize that privilege, and if they do, they have an array of arguments to explain why they deserve it.