Fliflo, all that "emotional bgm" may mean a lot to you and me, but it is nonsense in the commercial world of cinema. the bottom line is that IR is being used as a low budget alternative.
Secondly, we are not (atleast I am not) comparing IR's and ARR's musical capabilities. we are only comparing their marketing and selling skills/associations. In that sense, ARR is the bhishma, and IR is like ekalavya having lost his thumb.
Why all this ruckus? let IR be a sage, as long as he is happy and we can enjoy his music? Well if he gets the recognition and backing he deserves, we the fans can get astounding releases eclipsing TiS. Beethoven's works won't be as popular today if he was broke and playing fiddle at a local pub.