I once had the honor to attend a lecture by a prosecutor of the ICC.

Out of all lawyers/attorneys/prosecutors/judges that I met in my life, that one was the one that I would judge to bet he most idealistic and justice motivated (admittedly based on my gut instinct); a very rare breed.

It's good that there are such institutions with a good purpose, staffed with good people. Bad faith actors - including war criminals - will of course claim agendas (other than bringing justice), deny jurisdiction etc. but it is a good starting point to have them. The next step is to strive to give these organizations enough "teeth" to execute.

The "individual bully" problem needs some addressing, a solution to that remains outstanding.