$1,731 in today's USD is $37,392. That new car would be $18k, rent was just over $500. There's places in the US where average rent is close to that, and I bet if we removed NYC and the Bay area the national average wouldn't be super far off.
Education and staples are where you're getting drilled on a daily basis. Harvard costs many times the average national income rather than being a fraction of it.