They're still a publicly-traded company and are thus beholden to their shareholders, but they seem to have done ok in spite of that. I'm certain it's only a matter of time though - eventually new leadership will come in who will only care about maximizing profits.
Nah, Sprouts is just a normal corporate grocery store that tries to have a granola image.
The example I had in mind was Sevananda. (Its website is too polished to be the nationwide winner, though -- especially since it's touting a promotional thing they apparently had with Steve Harvey a year ago and that's way too "establishment.")