@dragunski , you are quite right. The same can be said about the guitarists role in Jump Blues bands, one of which I worked in during the mid-70’s. I love focusing on the guitarist in such bands, as they play lots of passing chords, often with beautiful clean tone on really great arch-top guitars---old single-pickup Gibsons are especially sweet.
In rock, guys like Clapton, Beck, Page, Hendrix, etc., unfortunately made being "only" a rhythm guitarist a humiliation. Few aspiring guitarists who came after them didn’t want to be perceived as anything less than a "lead" guitarist. If you look in musician hook-up sites, guys list their instrument played not as guitar, but as lead guitar. Unintentionally funny. A guitar is a guitar---there is no such thing as a rhythm guitar, or a lead guitar.
I’ve been listening to Bill Frisell a lot lately, and his song parts are absolutely fantastic. He plays little phrases that deepen and enrich the musicality of a song, but that don’t call attention to themselves apart from, and at the expense of, the song. THAT’S the kind of musicianship I listen for.