Shortages happen when demand exceeds production capacity, or if prices are artificially capped to make increased production unprofitable.
Usually the more of a product is bought, the more get produced. If the world will need more ventilators over the coming months, the best thing is for everyone to buy as many as they can right away.
There aren't that many "ultra-wealthy" people who are going to hoard ventilators. Even if they did buy them as an impulse, it would be an unusual scenario for them to sit unused in storage while the local hospital has patients going without them. Even the ultra-wealthy will value their friendly relations with the local ICU doctors more than that box gathering dust in the corner and donations will happen.
Usually the more of a product is bought, the more get produced. If the world will need more ventilators over the coming months, the best thing is for everyone to buy as many as they can right away.
There aren't that many "ultra-wealthy" people who are going to hoard ventilators. Even if they did buy them as an impulse, it would be an unusual scenario for them to sit unused in storage while the local hospital has patients going without them. Even the ultra-wealthy will value their friendly relations with the local ICU doctors more than that box gathering dust in the corner and donations will happen.