Certainly.This feels like a contradiction. Can you elaborate?
You are assumed to get magical items and piles of gold as you adventure.
The DM is supposed to give you a magic sword and a magic hat eventually. At least by level 7.
The DM is not forced to give you a magic sword +1 and a magic hat of intimidation +5 to keep you up with the math of challenges.
The DM can give you a magic sword +1 and a magic hat of intimidation +5 as a purely added bonus.
Nonmathematical magic items and services might be expected if certain aspects are in the setting