Not really. The EU isn't trying to kill Meta, it's trying to get it to follow GDPR where it applies. For most people, fining them an equivalent of their monthly salary, is a blow painful enough the person won't forget it soon, and will try to avoid getting fined again.

No, they wouldn't. An appropriate fine would have been given to a sole proprietor.

Yeah agreed. They will simply continue to violate the GDPR. If the last years global revenue was 116 Billion USD, the fine should be at least 200 Billion. Otherwise companies just will see the fine as cost of doing business.

Whether something is a 'cost of doing business' is based on whether the cost is expected or unexpected, not its magnitude.