Maybe it would be better to just call it the Music Hall of Fame, or the Popular Music Hall of Fame.
The argument about what is rock and roll, or not, could then be dropped.
Until then...Madonna, Dionne Warwick, Donna Summer are not rock and roll by even the broadest definition.
As for whether or not it matters that Rush got in, well...in the final analysis, no it doesn't matter. Nothing changes. But for those of us who have followed this band since we were young, there is a certain small satisfaction.