If you have $x, you can buy a house and save on $y rent. But you could also buy eg bonds, and make $z return per year. If z > y, going for the bonds is better.
Free time and health don't even come into the picture here. [0]
(Of course, taxes and regulations can make this more complicated. And there are systematic and idiosyncratic risks to take into account.)
It's not automatic that buying owner-occupied property is always the best way to invest your wealth.
[0] Well, I assume renting is better for your health: I was significantly less stressed about all the water damage that we had about two years ago, because I knew it was ultimately my landlord's problem, not mine. But the overall effect is likely to be rather minor, and it can go either way, as some people get a mental health benefit out of knowing that they own their home.