One can see the intent that was made with Pulaski, but it execution it faltered. Someone else stated it far better than I suspect I can, but here goes... When McCoy "dug" at Spock, the science officer in turn could dish it right back at the doctor. Data, on the other hand, was far more "innocent" and truly lacked understanding of human behavior. When Pulaski "zinged" him, it was basically the equivalent of kicking a puppy. I don't recall him pointing out human shortcomings because Data wanted to be "human". Now, if Data stated the various advantages of being a self aware construct, then they would have been on more equal footing. But depicted as it was, Pulaski just came across as needlessly cruel.