One would think that artistic integrity would be one of the main requirements to enter into the "hallowed hall", but apparently that isn't the case.
See Below:
(I know wikipedia isn't the most reliable source, but let's all take this into consideration)
The main criticism (of the RnRHOF) is that the nomination process is controlled by a few individuals who are not even musicians, such as founder Jann Wenner, former foundation director Suzan Evans, and writer Dave Marsh, reflecting their tastes rather than the views of the rock world as a whole. A former member of the nominations board once said:
"At one point Suzan Evans lamented the choices being made because there weren't enough big names that would sell tickets to the dinner. That was quickly remedied by dropping one of the doo-wop groups being considered in favor of a 'name' artist ... I saw how certain pioneering artists of the 50s and early 60s were shunned because there needed to be more name power on the list, resulting in 70s superstars getting in before the people who made it possible for them. Some of those pioneers still aren't in today"
Petitions with tens of thousands of signatures were also being ignored and some groups that were signed with certain labels or companies or were affiliated with various committee members have even been put up for nomination with no discussion at all.
Another criticism is that too many artists are inducted, allowing for several lesser acts to make it in. In fifteen years, 97 different artists have been inducted. A minimum of 50% of the vote is needed to be inducted, although the final percentages are not announced and a certain number of inductees (5 in 2009) is set before the ballots are shipped. The committee usually nominates a small number of artists (9 in 2007) and they are coming from an increasing number of different genres. Several voters, including Joel Selvin, who himself is a former member of the nominating committee, didn't submit their ballots in 2007, with the reason being that they didn't feel any of the candidates were truly worthy.
The Sex Pistols, inducted in 2006, refused to attend the ceremony, calling the museum a "piss stain".