Agree with Ted..and I don't do* SEO for others..I can't believe that anyone who does do successful ethical SEO for others would want to be "Google approved"..
Mathew 6.24 is just one of the reasons for "WOW that came right out of left field and won't ever fly"..
and who would trust a "double agent"..and "hitching your wagon to just one star"..etc ..
Google is only the "be all and end all" of search that you allow them to be.."Registered SEO's" working only to a Google "rulebook" would kill any innovation in the field..and weld the shackles of "do it the plex's way" around all SEO's..
I doubt even G would be in favour ..but don't give them ideas :)
*very rarely.. too busy with my own stuff