To be fair, there are very accessible options like margin loan or pledged assets which you can also keep going indefinitely - possibly all the way into estate tax which - as a "little guy" - you wouldn't owe. They are higher interest rates (to the point of not being all that interesting - depending on what you want to do.) And they don't have the same features.
But if you are high assets and low income, they might still allow you to buy a house with a loan - if it's what you want.
But if you are high assets and low income, they might still allow you to buy a house with a loan - if it's what you want.