I'll admit, that'd be a tough match for Terminators, Harlequins and Genestealers because of the sheer density of the mob, but for Incubi, Striking Scorpions, Death Company and Ogryns, they can still win.
215 points will buy 8 Ogryns and a Bone 'Ead. That's 24 wounds with higher strength, and armor than the Orks, with everything else about equal.
For Incubi, it's the same Deal. 8 Incubi, with a Master. 8 Wounds, but higher Initiative, better armor, power weapons, and strength.
For Death Company, they're free (I think?) and they've got not only FNP, but Rending and basically better all-round combat effectiveness.
Let's face it, Striking Scorpions were made to take down Orks. High enough strength to hit them hard, they hit with better initiative, tons of attacks, enough points to afford a solid 1/2 the Orks' numbers, better armor, etc.