If your company uses leetcode to filter out employees then you are a leetcode team with your internal levels and ranks, not at all representative of the whole population of skilled IT people.

How would you, or anyone, know if your career is representative of the field?

I’m sure plenty of people spend their career never learning or using data structures and algorithms knowledge. But I suspect plenty of people spend their career using this stuff all the time. Eg people who work in databases, compilers, operating systems, video games, ai, crypto currencies, and so on.

I have seen Goodhart's law.