If your work improves the productivity of 100+ other people, you're surely worth the price.
If your work saves $500k+ in annual costs, you're surely worth the price.
If hiring you cripples key competitors, you're surely worth the price.
If you can enable new revenues streams through knowledge that only you have, you're surely worth the price.
If hiring you does not increase productivity, reduce costs, fend off competition, or bring in more revenue, then you'll be fighting an uphill battle to justify that salary. But if you do, talk about it. People gossip and those companies who have the biggest multiplier to benefit off your work will be working hard to reach you.
In my opinion, remote or not is less important than you think. The key decisions will be based on whether hiring you at that price is a net positive for the company or not.
EDIT: And if you're outside of the US, set up a local LLC so that US-based companies can treat you like an independent contracting business. That'll make it much easier to hire you across borders. And at that price, you can surely afford the $1000 annually for a tax advisor retainer.