Have you ever wondered why we buy everything at almost the same price irrespective of our level of income, including essentials like food or medicine?  In a supermarket, the prices are the same irrespective of your socioeconomic status.

You can't tell in advance if someone has more money.

But entrepreneurs know how to smell the money!  That is what sets them apart.  They differentiate the product or service so that you are enticed to pay a bit more.

It could be using packaging, location of the supermarket, intended use, advertisement, or association with certain influencers.