Over the years, there were probably two virtues fighting a battle inside Khawaja: loyalty to the common cause and the duty to tell the truth. In the end, it was the truth-teller who prevailed.
Khawaja was also a bit offended that the three, especially his childhood friend, Warner, were blamed and pilloried for something they had done together. The bowlers and other team members may protest and deny it, but Warner said that Khawaja was being 100% truthful, which is what I believe most people think.
https://garfieldrobinson1.substack.com/p/the-trouble-with-telling-the-truth