Thanks for clarifying. Phrased / thought of as “a situation wherein X happens is immoral,” it makes sense.

My confusion came from not doing that, even after reading the “Remember:” text in the comment, thanks to my conflating my personal belief that the individuals who are part of corporations that purchase houses in mass and rent them out are behaving immorally (vs being actors in an immoral situation) being adjacent with a statement about an individual renting out a room.

That concept of morality feels more similar to what I think of as “fairness” (though not an exact match) than to individual morality.

I feel like there must be a different word used to convey the moral judgment of someone who isn’t doing the best they can within the framework - i.e., someone who is choosing to exploit laborers for profit in excess of anything they could use for themselves.