 In the comics, the curse of the Wendigo resulted from cannibalism,  rather than ego. This was probably too much for childrens TV. The  Wendigo was also in Canada, but Hulk had just fought a furry beast  in Canada in episode 1.06 "Man To Man, Beast To Beast", so the  location was changed (episode 1.10 "And the Wind Cries&...  Wendigo!").