I think that’s a little cynical. I’d say that if someone (especially a famous someone) does an impressively and undeniably positive thing in our world, the response is generally positive. On social media, it can be more mixed, but even their critics find it hard to criticise them for that specific thing, so they usually just ignore it or jeer at their “virtue signalling” or whatever.
The problem with stopping wars or similar is that, despite the maths on the ground (people killed by bombs today = 50 fewer than if Superman hadn’t turned up) such actions are rarely undeniably or purely positive. If Clark stops a Russian advance in Ukraine, well, that’s great for Ukraine and most surrounding countries and he’d be hailed as a hero by many people in Europe and elsewhere, but some - such as many Russians and those who fear that Clark is a particularly American power - will express disapproval and fear.
If Clark stops an Israeli attack on a hospital in Gaza or an Indian attack on a village in Kashmir, that gets even worse. Freeing prisoners from an Uyghur internment camp in Xinjiang? Freeing US prisoners from El Salvador? Kryptonite bullet time.
