Capt Bit Bull: "Remember, the MEL permits you to take the aircraft, it does not require you to do so."
Are you from the flying club where pilots individualize procedures?
Let's see: Your auto pressurization system is DMI'd today, and you're about to strand 400pax because you don't feel inclined to work manual pressurization because it's a 14hrs flight? . . . Yes, you can be sure that your services will no longer be "required" henceforth.
The MEL and CDL are accepted procedures approved by the manufacturer and respective airworthiness authorities.