I still feel bad about what Smith underwent. He lost one year of his international career, when his form was at the peak (Warner as well). But what Smith did was something that a lot of people do. Instead of using saliva or sweat, he used sandpaper. The case with Tim Paine is entirely different. The ICC or Cricket Australia has nothing to do with this topic. It is his personal issue and he needs to deal with it. Having an affair outside marriage is not breaking any of the ICC rules, as far as I know.
Tim resignation from captaincy is on moral grounds not on breaking any code of conduct. He wan settle this issue and of course his marriage life. Moving towards Australia cricket, Cummins is going to lead Australia in Aashes. Mostly fast bowlers are not made captains but we have seen some brilliant fast bowlers captain like kapil dev, imran khan, wash. Hope he is one more in the list.