So calling this lessons learnt makes no sense. He hasn't learnt his lesson and is not displaying any intention to start now (given that he comes from a British/Pakistani family of conservative party politicians, which is also a family of sex offenders, that seems about par for the course)
It's weird how one needs to keep explaining to US and EU people: almost all governments do not take decisions based on how they'll affect people and/or the government involved. Different governments have different priorities. The decisions of the UN are targeted towards keeping their members happy and paying. The vast majority of governments worldwide are governments that were conquered by a group or even a family. These people see controlling government as a business and the business is to use control of the government to extract the maximum for that family. And joke all you want about Trump, it can be 1000x worse, and it generally is. The ICC isn't that bad, but it's pretty bad.
If you want to know what the ICC is (and isn't) about, read about how they went about prosecuting a Dutch citizen (their host country). It reads like a Blackadder script. The guy was accused, the Dutch government threatened, suddenly the accusation got dropped, he got knighted by the Queen in a New Year ceremony, got a pay rise. The ICC got a new building.
Google "DutchBat".