So Sheamus can get the WWE Championship but Shelton can't?

WWE someday are gonna wish they did more with this guy hes probably the most talented and greatest athlete in all of WWE today and would smash Sheamus anyday and they never have given him a world title. Once he gets released (It will be soon he got put on ECW) TNA will buy him and use him as a top star and WWE will be regreting the day they released him. Do you agree if you dont take a look at some ladder matches that hes been in.