Carl Missouri

Chosen answer: Since Andy helped Hadley with the tax-free gift, Hadley realized that Andy could be of future financial use, which he can take advantage of considering he's in prison for two life-terms. The sisters beating up Andy would interfere with that-consider that Andy was in the infirmary for a very long time after the last attack. Beating up on Boggs sent a message to the sisters to leave Andy alone...or else.

randomguy

Answer: Norton had Hadley beat up Boggs because he and the Sisters would have eventually killed Andy and Norton needed him and his banking skills to cover up his scams.