"Discipline is a set of self imposed rules, parameters within which we operate. It is a bag of tools that allows us to design in a consistent manner from beginning to end. Discipline is also an attitude that provides us with the capacity of controlling our creative work so that it has continuity of intent throughout rather than fragmentation. Design without discipline is anarchy, an exercise of irresponsibility."

Massimo Vignelli

I think if we continue to use the term "Web Designer" then the use of grids is more than acceptable.

In postscript I will however admit that I am a complete html novice so perhaps your point is quite valid.