The ME isn't in the CPU, it's in the PCH. I'd be astonished if Intel made special parts that didn't use the ME at all, it's much more likely that they just have

The ME isn't in the CPU, it's in the PCH. I'd be astonished if Intel made special parts that didn't use the ME at all, it's much more likely that they just have the HAP bit set in the FIT and the ME largely shuts down part-way through boot (you still need ME firmware to be present, so the ME clearly still runs some amount of code before disabling itself)