My first statement is based on Konrad's preseasons up until this season. Ngani has had great pre-seasons, apart from last year. He is always talked up as one of the front runners in preseason training, but has been lumped in with Konrad due to one Tongan holiday.
You are right, Konny hasn't got in any serious trouble, but he has got a name for misbehaving on social media, though he may have it under control as he hasn't done anything wrong for a while. Any more hijinx like the Vasa blowjob tape would cause enough damage to cost him some gametime. (Funnily enough, I was the first person Konrad followed on Twitter - a few years back when he was a junior, when I started a twitter account to follow the players and found Konny had just started his account. I followed him, and made a couple of comments, probably to or regarding Locke or someone, and he followed me. I checked out his account and I was his only follow. Stayed that way for a while, too. But I would rather he stayed away from social media).
I never said Konrad needed to "completely modify his game", as you are saying. He just needs to add a touch of self-preservation, and not make every hit-up a kamikaze run. He used to suffer after almost every charge, but appears to have toughened up a little.
I hope we can keep Konrad in tiptop shape and play him for a few more years, but I wouldn't base my squad around him lasting every game every year. As long as we have good depth to cover, then we will be OK. My initial thoughts would be Konrad, Ngani and Kata (obviously one will have to play NSW Cup or wing) are our top centres, and Lolohea would be better utilised elsewhere, but able to cover in a worst case situation. I see Wright and Allwood as more wing depth, than first choice centre back-up.