I think Arnie's physique is a better representation of what's achievable naturally, even if his never was. The pro bodybuilders of today really offer no inspiration for the natural athlete looking to improve their physique. They're simply walking medicine cabinets the size of outback dunnies. Completely unrealistic and aesthetically displeasing.
Arnie bought bodybuilding to the world stage and set in motion positive knock-on effects across the health industry right into everyone's laps. And let's not forget the action hero genre he bought to the movie screen that many of us grew up on and still recall as favorites today.