He's too much of a class act so he'll do his duty with a smile on his face but others in his situation would be forgiven for a DNF considering their own career & season is at stake. Plus there's the fact Vingegaard is a terminator & the strongest rider in the race. It's not even close right now ergo Roglic isn't needed. Kruijswijk & Kuss are literally stronger than Roglic in this race so after his 'heroics' yesterday to break Pogacar, his utility now doesn't extend much beyond appearing in the team's #samenwinnen social media propaganda.
Honestly this is the first time I have the feeling Jumbo are mismanaging Roglic, especially right now. This happens to other riders in other teams ( i.e. Pinot for example was forced to finish the 2020 TdF by FDJ in what was a ridiculous self-defeating stupid decision), but it's the first time I feel something similar is happening with Roglic & Jumbo, i.e. the team putting its own interests above him.
It doesn't have much to do with him being a class act or displaying chivalry. Not that I doubt he's a genuine good guy.
He's doing what he's paid to do, and that is to ride for the team. He's obviously not at his best now, but it's not like he's being dropped like he was after his crash last year either. He's still good enough to be of value. I assume he was hit harder by yesterday's efforts than his teammates, but that doesn't mean he won't have better days later on.
But if he's risking his own health too much, then he obviously shouldn't continue.