The clutch settings on drill drivers are effective at limiting the torque applied to the fastener that you are driving. If that fastener happens to be a machine screw or bolt into a threaded hole or nut then equal torque will result in equal pressure holding the two parts together. If that torque is being applied to a self drilling woodscrew the results will vary. The torque applied will be the same but the resistance to penetration of the screw by the material being joined will result in considerable variation in the tightness of the actual joint. I have seen screws stop short of actually seating against the surface with the clutch setting that was perfect for the previous screw. And I have seen screws snap in two with the same clutch setting that worked fine on the last 100 or so identical screws.
The clutch is a good way to limit your ability to overdrive screws, so are your senses of sight, feel, and hearing.