What does step over a dollar to pick up a dime mean?

Answer 1

I think it has the same basic meaning as "penny wise; pound foolish."

Some people put so much effort into saving a few cents here and there that their efforts end up costing them dollars in the long run without them realizing it.

Answer 2

It means that sometimes you need to ignore small distractions and concentrate on those things that ultimately have more value for your situation.