I'm not sure anyone is suggesting they are.
Hayne asked for a release, whereas SBW left in the middle of the night without telling anyone.
Hayne was picked for the Australian team yesterday and had time remaining on his contract. He's already been to the US to talk to possible clubs so obviously had planned this for a while.
Sonny makes a shitload of money in French rugby while working towards his goal of playing for the All Blacks in a World Cup on home soil.
Hayne will train solo for a year (no doubt his sponsors and all his endorsements will continue as there's rewards on offer for those companies) in the hope of earning shitloads.
All these guys (Hayne, SBW, Izzy, Hunt) are freaks and I bet at school we're playing cricket, basketball, footy as well as athletics and swimming but league came in with the $$$ first.