Apples to oranges. Superbowl rings are much rarer and much harder to win than NBA rings.
That is why almost no one ranks Bill Russel as The GOAT despite his 11 rings and Michael Jordan is ranked as the GOAT on nearly every list despite him having only 6 rings.
I In the NBA, The Celtics have won 17 rings, while The Lakers have 16 titles.
In the NFL on the other hand, the most anyone has won is 6 titles(The Steelers), followed by New England; San Francisco and Dallas at 5 each. No one is even close to 17 or 16.
Seems likely that if the Superbowl was a best 2 out of 3 that there would be much longer dynasties. Football is such that the vagaries of one game go a long way toward balancing the advantage of the best team.