It's not slavery: you are free to quit your job and work for another company, or start your own business. But if you DECIDE to work for a company and take the thousand(s) of dollars each month so that you can live a comfortable life, then you owe them your loyality.
I wonder if you would agree with your statement on loyalty if the roles are reversed:
"If the company DECIDES to hire you and use thousands of hours of your life each year so that the company can enjoy a profit, the company owes you its loyalty."
Rare is the company whose leadership feels that any meaningful loyalty is owed to employees.
Edit: I want to add that your 4 guidelines are wonderful if you work for genuinely good, moral people who want to "do the right thing" and who have the luxury of setting such priorities. But caution is necessary. Far too many employees devote decades to a company only to find when they're ill or older that loyalty was a one-way street.
I agree with your reversed statement. The company needs to be loyal to it's employees too.
But in my opinion, some principles should not depend on how the other side acts:
"If my company is not loyal to me, it's my right to deceive them as well."
-> No, I will stick to my principles. I might bring it up to management. I might quit. But I won't act destructively because the other side does.
Otherwise it's a downwards spiral:
you will meet many toxic people in your life. If you lower your standards everytime you do, at some point you will be one of them.
