I think op. 10, no. 2 really hit the nail on the head!
The 'rage' expressed and felt in rock and metal music is primarily based in rhythmic ostinatos performed by the rhythm section and more explicitly the drummer.Take away the drummer from an audio mix and any powerful orchestra or pianist can compete with the remaining sonic impact.The reason rock music uses drums is because the music has long periods of constant driving rhythmic force. Classical music never needed this because the music was always intended to be more dynamic and express many shades of feeling within short spaces of time, therefore a constant 'beat' simply wouldn't work with this kind of music.The emotional heights of fury or 'rage' felt in classical music are more powerful albeit more fleeting as they have to be preceded by a buildup of harmonic and melodic tension.The emotional impact of a rock song is immediate and holds up through the majority of it's duration, however it never really reaches the same heights of intensity and tension as a classical work can.Progressive rock and modern classical have both tried to combine elements of both but they tend to lean toward the rhythmic propulsion or the harmonic tension side of things and haven't, yet, to my ears reached a perfect hybrid.
Trashy, but with obvious rage.