On a gdp scale, basically every country on earth is "poorer" than the united states. As you point out, even the poor in America can own cars and tvs and smartphones.

But if you visit any of these other countries you can often be shocked by how much they accomplish with so little. Vastly better standards of customer service, much higher quality public transportation systems, and they often have cheap quality goods and services which compromise in the right areas instead of being so crappy as to basically be a scam