Other than Game Freak Logic, one reason I can think of is the move Head Smash. Think about it, 165 base Attack stat with 150 base power with no cons besides that 80 accuracy. That would essentially make any in game Pokémon run away in fear. Especially in the later game when you learn Head Smah. You could just spam Head Smash and wreck everything in your way. Also, that would make things interesting in Competitive as well, especially in Rampardos' tiers when it's ability or hidden ability came out especially with Life Orb or a Choice Band.
Hope I helped!