Unfortunately, this is how business works. If they can hire an operations team full of Windows lusers and pay them $30K a year instead of Linux admins that cost $60K a year, they usually do that.
The thought never crosses their mind that you get what you pay for, and 1 qualified Linux admin can replace an entire team of Windows admins due to automation, scripting, and superior manageability of Linux.
Look at it this way: you should never trust a single guy to manage your entine system. You need to have backup in case of the flu, accidents, anything.
The thought never crosses their mind that you get what you pay for, and 1 qualified Linux admin can replace an entire team of Windows admins due to automation, scripting, and superior manageability of Linux.