It depends on how good the quality of the eggs is. If the quality is good, you are probably wealthy.
Discussion
Those are freerange eggs from a small farmer. Even though it’s very cheap.
Normal eggs cost like 3 CZK ($0,13). These are only 5 CZK ($0,22). It’s a steal.
My point is - I don’t think you need to be extra wealthy to eat healthy. But going to the supermarket is super convenient and not many people is willing to plan and sometimes travel to get high quality products.