That would not work, especially in the current day with availability of online reviews and the shortage of available labor. If you rip off customers they will leave poor reviews, leading to decreased business. Rip off employees and they will leave for a better situation.

>Your restaurant might have good profit margins, and you can still be clueless about what it takes to run a good restaurant

That's just a terribly stupid assertion. The margins are notoriously low in the restaurant industry so if you don't have a solid understanding of how to operate one you won't have high profit margins outside of very specific conditions such as captive audiences(pizza places in Vermont don't qualify). So if you care to fill me in on the non-germaine reasons I'm wrong let me know, but so far none of what you've said makes any sense