FIS etc
IO540
You appear to have an immensely cynical attitude toward the FIS and appear to see the only value to any service being in RADAR awareness. Most pilots do have a personal radar, it is called the eyeball, which should be used extensively.
A FIS does much more than that only achieved by RADAR. As the CFI of a large club i'm, unfortunately occasionally involved in unraveling why controlled airspace has been infringed by a member or others. In virtually all cases the infringements would have been avoided should the pilot have been receiving a FIS. The incidents over the years have ranged from simple airspace incursions to flying through Red Arrows restricted airspace.
Various FIS units, including London, are brilliant at maintaining a very good situation awareness with those aircraft in touch with them and they are applauded by me if not you. The FIS provides much more than the simple use of RADAR as many have already outlined and should be used by all on every occasion.