Yeah, that's what I think I'm trying to get at by making the distinction between being an owner and a user-owner. In your example, the ST holder is just an owner as they most likely are not a user (and if they are, not regularly) of a hotel or ship. Thus, in order for them to care, their ownership level must pass a certain threshold, let's call it the DGAF level, before they act like, well, they GAF. One might call this the ”skin in the game" hypothesis.
A user-owner, on the other hand, would have a comparatively much lower threshold for their DGAF level, simply by virtue of the fact that the value of something that someone uses regularly is comparatively higher than the value of something that they DO NOT use regularly. This proposed relationship one could call the ”out of sight, out of mind" hypothesis.