I think that not being content with what you have is very dangerous. It can drive you to do things you normally wouldn't do. I feel like you can never find peace if you don't actively accept how things are. Yes, you are allowed to have more for yourself, but I feel like self-love should always take precedence. Think about why you want to do something. My hunch is that you're not doing it for yourself.
Sound advice
How can someone expect you to treat others with kindness if you can't treat yourself with kindness?