i don't get your point. Hogan's life and Self Promotion(hulkamania brand, rent a center,etc) doesn't run through his employment with TNA. Another thing WWE doesnt need promotion(60 years running) and Wrestling fans already know about TNA. Whats your point?
Are you serious? Hogan is a prominent TNA employee and has been heavily involved in promoting them 'raising the bar' and pushing on. He should, at least, be wearing a TNA shirt and namedropping them when he's on these sort of shows.
Of course the WWE needs promotion. The fact it's existed for 60 years isn't going to make new fans tune in, they need to promote the product to attract new viewers. Think about it, why does Coca Cola buy premium advertising time when they're one of the biggest brand names on the planet?
Wrestling fans may know about TNA, but they're not watching. If TNA gets 2m tuning in, they're still getting just one third of the viewers that Raw's second hour had this week. If they can get that up to half of those people watching, they've increased their viewership by 50%.
Promotion, advertising and your workers selling your product to as many people as possible- those are the cornerstones of the wrestling business. TNA and the WWE aren't bringing in people from the Jersey Shore cast for their entertainment value, it's because they're trying to attract whoever they can from the show's huge number of viewers.