Most likely what will happen, and I believe this is the case already in most businesses, that the cleaning functions will be outsourced to a separate company. Therefore the limit won't be the cleaner earning 10k/y, but some office admin person earning 30k/y (just guessing that one).
Now then a CEO might want to outsource those jobs as well, so the company would officially only employ the highest income people.
Either that or split the company up based on earning bands, and have the CEO be the CEO of each company, so even though they could only get paid 500k for the company with the cleaners, they would also be paid 1m for the company with the office admins, and more for each other company in the bucket.
There are ways to work around whatever limitations will be created.
Now then a CEO might want to outsource those jobs as well, so the company would officially only employ the highest income people.
Either that or split the company up based on earning bands, and have the CEO be the CEO of each company, so even though they could only get paid 500k for the company with the cleaners, they would also be paid 1m for the company with the office admins, and more for each other company in the bucket.
There are ways to work around whatever limitations will be created.