Not really.  You can charge whatever you want, even nothing, for your product, and no one can say a thing.  DS doesn't do the same things as Poser does, never has.  That's like saying the folks who write Blender could be sued for predatory pricing because it does the same thing that Cinema 4D does.  

And, the comparisons between how "good" the outcome is moot.  It's not the program, it's how you use it.  

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Knowledge is knowing a tomato is a fruit. Wisdom is not putting it into a fruit salad.