With tailenders it's not just about the runs they score, it's also about how many runs are scored at the other end whilst they're batting.Assuming they'll bat on average 1.5 times per game, then you're talking 15 runs difference.
Unless you can say yes Murali is going to be more effective as a bowler than Warne, but by less than 15 runs over the course of the match, then it's not an issue.
But we have different question here, and respectfully, I'd suggest the answers are obvious:
-Do lower order runs make someone a better cricketer YES
-Do lower order runs make someone a better bowler NO
-Do lower order runs determine selection THEY MAY DO IN LIMITED CIRCUMSTANCES BUT NOT NORMALLY
Also if a tailender hangs about, even without many runs, it can wear the opposition down a bit.
So Warne's batting is worth more than 15 runs per game over Murali in my view.
The obvious recent example would be Jack Leach against the Aussies at Headingley when his long stay at the crease didn't produce many runs, but it allowed Stokes to win the game for England.
Obviously when selecting bowlers it's their bowling that is the priority but you do have to consider their all round game.