Isn't gender roles more of a big picture, macro view of things?

In any given relationship there are certain roles the people will play that might fit the larger gender roles and certain roles that won't.

If you discuss it with your partner and you both agree that the man should be take care of house/yard maintenance and repairs, for example, does it really matter that it coincides with the societal standard of gender roles? Would it change things if the woman in the relationship was more likely to play that role, just because it isn't the societal norm?

As long as both people are happy with the relationship, I have no issue with non-traditional roles.