Rage Against The Machine: How will they be remembered 30 years from now?

Personally I'm a huge fan of RATM. I'm very unsure, however, of how exactly they'll be remembered. Do you think they'll go down as a "great" band of this generation or will they mostly be forgotten? Two interesting points about them which I think are noteworthy:

-I once had a discussion about which band would it be most tough for someone to cover one of their songs and do it better than the original. And many of us agreed upon RATM simply because the unique quality of Tom and Zack. (FWIW Led Zeppelin was the other popular choice in the conversation)

-I think that many people would agree that they are FAR AND AWAY the best band of their genre(rap/metal fusion or rapcore I guess you could call it). I mean, seriously what other mainstream band in that genre is even in their league? And is there any other band that has such a wide gap between them and the other mainstream bands of their particular genre?

I would be very happy if they had a great legacy. In the post-Nirvana era they're one of my three favorite bands(the other two being Radiohead and Weezer). Thoughts?