Cuddy needs to grow up, shes runs a Hospital and House saves lives in that hospital because of his actions. He may pretend he lies for fun but he does it because saving lives is more important.
Well, for House anyway, "solving the puzzle" is more important. But there has been the occasional patient where he has lied to/for because he found a "connection" with them and did everything he could to save them.
Coming to wind was a woman he had for a patient in S1 who ended up needing a heart transplant due to her using ipecac to aide her bulimia. The ipecac damaged her heart and is on the list of things that'd get her excluded from a transplant list.
So House had the choice of either being honest with the Transplant Committee which would mean his patient wouldn't get the heart (given she the likely hood she'd burn through another one due to her bulimia problems) and die. Or he lies to transplant committee, doesn't tell them about the ipecac and she gets the heart. He did the latter knowing full-well it could cost him his medical license if anyone on the Transplant Committee found out (including Cuddy and Wilson (both of whom had their suspicions and this was during the time when Volger (a new Chairman of the Board) was breathing down everyone's necks to get the hospital in-line.)
The patient, post-op, asked House, "Why did you do this for me? I mean you barely know me and you risked so much."
House: "You're my patient... Don't screw this up."
So, yes, House
does lie to Cuddy and committees for the "good of his patient." This was one of those cases. And, again, a case where the patient's odds under the "risky treatment" were
better than they were under
no treatment!