Being rich/wealthy
obviously. It's very weird to me that humans haven't corrected our need for greed yet. As history shows time after time after time after time etc so on, so forth... greed/power/riches only lead to some kind of downfall/destruction.
World Peace
is kind of silly though. I don't think that's ideal either. Life would be boring and frankly, it's just never gonna happen. However, my idea of "world peace" is realistic and would be that everyone has equal opportunity and is treated equally under the law.
Eating healthy is not overrated.

If anything it's underrated as shown by alarming statistics about obesity. It's important to eat healthy and it's even more important to avoid corporations who abuse animals and feed us disgusting chemicals just to become more rich and powerful so they can continue to enslave us as addicted customers and/or underpaid workers.