Are you asking about Marine helos or Navy? Not one and the same. Some of the same platforms but not always. Also being a pilot for either the Navy or Marine Corps is different. From your post it appears USMC.
Marines are Marines first and foremost, regardless of MOS. We all go to TBS first regardless of future MOS or air contract. So the first thing you learn in the Marine Corps are basics if the Marine rifle platoon. Every Marine a rifleman first and foremost. Marine Corps you would fly 22, Ah-1 or Uh-1 or Ch-53 (hope I didn't miss any, 46's are retired...Few other in HMX-1 but thats another beast totally). So missions are transport, attack or a variety of things they use for Hueys. Remember everything in the Marine Corps is centered around supporting the Marine on the ground from close air support, casevac, resupply, troop transport, command and control, etc. Yes pilots stereotypes exist even in the Marine Corps. Jet jockeys have their own unique stereotypes. Some of it holds true in the Marine Corps, but my personal opinion is its not as bad in the Marine Corps as in the Navy. Why? Because it's all about supporting the guy on the ground and helo guys tend to see that up close and personal. Without them they have no mission. They fly into hot zones and pick up hurt Marines, they drop off Marines in hot zones, they talk to Marines to put rounds on the ground to help out their fellow Marines. They also tend to be based in theater much closer to other Marines, sometimes the same bases. Jets don't have to be, they drop rounds from much higher, they don't have 20 Marines in the back of the jet they will drop off and run into fire. Bottom line, everything in the MAGTF is centered around supporting grunts, the Marines in the fight and helos and jets are just a supporting element to it. So as a Marine pilot you learn early on... You are a support element.
And let me say both (jets and helod) have very much needed and great missions. But yes there are differences. Each person has their own opinion of why. Anything else specific? I was not a pilot, but majority of my buddies are. I can ask them if I can't answer.