any admission, would only bring opprobrium not approbation. He would have a degree of ego, and this would only bring him negative editorial. Why further the story.
His inside knowledge is fungible, but the pain of whistleblowing is also a reserse side of the ledger.
So on his resignation from Sky, he would have negotiated with Brailsford, what his knowledge about keeping doping secret was worth, less the pain it would cost if he whistleblows, and any other professional costs which would incur. Brailsford would have those up his sleeve. Its like a Floyd negotiation, Armstrong obviously wanted to win the negotiation and did not offer Floyd enough to deter him going ahead with the qui tam. Here, Brailsford would be aware that Sky could be hurt, and how much Leinders needs to receive so everyone is still happy and they all have their knighthoods.
its pretty simple really.
GBP and professional and social/status cost.
ask yourself, why we only get the odd Daniel Ellsberg?
Now with the interwebs, we get Chelsea Manning, Julian Assange, Edward Snowden, Aaron Shwartz, but they are the exceptions that prove the rule.
Floyd really did not blow any secret high. Everyone within a 5 degree of the pro peloton, and other pro sports, new Armstrong was not legit
If Leinders talks, it might be talking against his own raison d'etre and identity and lifeforce, it may be a self denying enterprise. You stare into the mirror, and kill yourself with words.