Yes, there are plenty of other investment opportunities, the fact that you chose the one that profits off of housing insecurity shows you don’t enough about it to forgo a little bit of extra money.

Like other people have mentioned you would also have to be advocating against your own interest. Yes you can do that but your passion will at least be dulled by your innate desire for profit. You’d have more passion and will for the cause if you didn’t own investment properties, even more if you are renting and are a victim of housing commodification.

Another point is that you’d be adding to the demand of houses and thus raising the price. You could argue it’s a drop in the ocean, but that sort of attitude leads to a million drops in the ocean and rising sea levels. You would also probably be buying it on a mortgage that’s larger then the house was previously on so the floor for rent , the break even point, would be higher.

Eg. If you bought the property for $400,000 on a mortgage for say $2,000 a month from someone who only had a $200,000 mortgage on it for $1,000 a month you’ve now upped the rent floor $1,000.