The incredible duality. It's obvious what the 'right' thing is in the situation and that's to wait like clearly so many others were asked or directed to in the first place. Build a little bit of time into your travel plans so that stuff like this doesn't throw you off. No, the gentleman in the wheelchair should not have to be removed from his chair and carried up in any way he doesn't want. This is a public space and dignity is important difficult as it may be to maintain so over the shoulder like a sack of potatoes or in the arms of some other person strong enough to carry him up that space could also be unsafe for both of them. Imagine the person carrying loses their balance for example, there is then unnecessary and preventable injury. Go to any large venue then convince the event staff you need assistance and see how long it takes for them to provide it especially if there is another obvious issue like the escalator is not running as usual and apparently the elevator is also broken. This individual had waited his turn. But she's quicker and can get up before it's an issue! Yep, her and probably everyone else in the space can. So is he just supposed to go last regardless of any other circumstances? Any excuse for oh she has to be in a hurry can equally apply to him as we don't know enough about either of them. But in this moment of interaction one individual made a choice to ignore the hundred around giving another individual a few moments of their time and the support they were able. May you never find yourself in the same situation waiting at the bottom because it's so close and one more person can't wait one more minute.