Seol was allowed to run towards the penalty area and unleash a shot which crept into the corner of the net.
Paul McVeigh produced a superb volley from 25 yards which Stefan Postma tipped over before Ganea tucked home Lee Naylor's centre from close range.
Naylor curled a free-kick on to the bar in the second half and Lewis Gobern's drive was just over near the end.
Norwich manager Nigel Worthington:
"It was a spineless performance. I didn't speak to them after, I'll let them mull over it.
"My teams are usually honest, but we have now had two performances in four games where we have been dishonest.
"I will stand up and take the flak that comes my way. What I want is for my players to see what the word honesty means as we are lacking in this area."
Wolverhampton: Postma, Naylor, Lescott, Craddock, Edwards, Kennedy, Cameron, Huddlestone, Seol, Ganea, Clarke (Gobern 75).
Subs Not Used: Harrison, Gyepes, Olofinjana, Anderton.
Goals: Seol 2, Ganea 37.
Norwich: Green, Drury, Davenport, Doherty, Colin, McVeigh (Thorne 64), Brennan (Rossi Jarvis 73), Jarrett, Huckerby, Ashton, Henderson.
Subs Not Used: Fleming, Ward, Charlton.
Ref: C Foy (Merseyside).