I don't think it "needs" to. The "need" argument is so far from how I approach things that it is foreign. I don't need a car that will do 125 mpg. I don't need a 4000 square foot house. I really want these things though.
If it were all based on need, the bass guitar would still look like the original Telecaster P bass. That is all we "need". I think it is great that people wanted more: round wound strings, 5 string basses, 6 string basses, fretless, on board preamps......so forth.
For my tone and my voice, I want as much "natural" clarity as I can get. I change strings around every 12th hour of play time. That, plus a tweeter makes it where I don't have to boost highs. Boostings highs makes things sound clanky to my ears and it hurts.