While the dielectric grease may make it easier to get apart it actually hurts your electrical connection. Dielectric grease does not conduct electricity.
Fortunately this is a myth.
Prove me wrong :)
Go out to your rig yank the battery cables. Gob the grease on. Then put the cables back on, hit the starter. Again. Again. Twenty times. Then grab a brewski and wander around for the rest of the day scratching your head. A year later you'll remain wondering how and why.
Theory always takes a slapping when it faces practical experience.