It's one thing to offer one's assitance or suggestions but something totally different to take something as your own, taking credit of the item as your own creation (remember Tom and the others said THEY liked RICHARDS or KEVINS dish so much they were going to put it on their menus) just after looking at it, PRIOR to your competitor preparing the menu item himself.
Richard instructions on how to quickly prepare beef tongue in a pressure cooker to Antonia or saying he would help Fabio with his preparations of hamburgers since he had never made them is a conscious choice made by Richard to do so. Had Mike requested Richard to allow him to make the chicken oysters for the challenge and he said yes, then there would have been no issue. But what if Richard would have said no, he wanted to retain the menu item for himself for a future challenge, like the finale?
Mike took that creatve menu item opportunity away from Richard and claimed it as his own. No matter how you want to spin that salad, it's immoral in most people's books. Then, to make matters worse, Mike was a poor sport when he won the challenge with Richard's item.
These qualities are not those I would consider "worthy" of I would consider a "Top" Chef. Desperate, nasty, cro-magnum, and sexist Chef yes, but Top Chef? No way...