Ennio Morricone and Giorgio Moroder would be considered sound designers. Mario fuckin Basanov??
More bollocks from Creeps as per...
Definition of Sound Design - "Sound design is the process of specifying, acquiring, manipulating or generating audio elements"
Morricone is primarily a composer and conductor of orchestras that use real instruments. At the end of the day a trumpet is a trumpet and a violin is a violin if you're conducting an orchestra...
Moroder is recognised primarily as a producer/composer. Let's take a few of his more well known tracks. I Feel Love, Love to Love you Baby, Flashdance, Electric Dreams, Never Ending Story... Not much 'Sound Design' going on in them is there, they just use bog standard out of the box presets from a particular synth that was around at the time. Even the drums were from a crappy drum machine. No sound manipulation/design whatsoever.
If you're looking for a composer that was considered 'sound designer' try the Luigi Russolo.
Now let's look at Basinov under his Ten Walls guise... He takes a sound and manipulates it to become unique to him, or creates one from scratch. That is sound design. What other producers out there at the moment sound like Ten Walls? I'll tell you, none. He has designed his own sound for that particular guise.