I think Dick was way ahead of his time and regardless of the fact that many of the AMATS changes are still stubbornly rejected to this day, he did however achieve one enormous benefit for the industry.
He "amalgamated" ATC and FS into one Air Traffic Service, so eliminating the duplicated management positions and getting rid of the outdated OCTA and CTA that then existed. The FSOs did not all get redundancy many of them are right now holding senior positions in ATS, something they would not have had the chance to do except for Dick.
Now ATS en-route controllers are providing surveillance-based services in Class G, E and sometimes C, on the same surveillance display, while VFR pilots can get on with their business without having to tell Airservices (the Federal Government) where they are and what they are doing every 30 minutes. They will even get controller initiated safety alerts if unidentified aircraft seem to be in close proximity and are smart enough to be monitoring (not talking on) the area frequency.
All of these changes to the way the service was delivered were inevitable as surveillance became more widespread, Dick, as I said before, saw what was happenning in the US and had the sense to introduce it here.
Slowly, very slowly, his other improvements are percolating into the system - but now of course they are someone else's idea!