In the end, Wilson's career is safe since he didn't give the speech, House is safe since no one knew he was there -and having never attended one of the conferences no one knew it was him- and the real Alias Doctor has an alibi for wherever he is and Wilson's message gets out.
The only possible "kink" is how no one recognised the "World Famous Diagnostician" Dr. House. House may not attend conferences, write papers, or do anything like that but his reputation as a brilliant doctor has made him world famous so he's likely had his picture at least in some publications about him, articles about him, TV doucmentaries were he was featured -which happened just a couple seasons ago- or even his picture on PPTH's website.