Why does the Army not have as much pride as the Marines?

The major difference between the USMC and Army is that the Army focuses on individual achievement, whereas the USMC focuses on being a part of a group. The USMC also cannot do anything without a camera crew and journalist attached to every platoon.

Nope, they are not Marines...who adapt and overcome...with little budget and old equipment....but they STILL get the JOB DONE....

A Navy Corpsman (RET)

Nope, they are not Marines and they don't adapt and overcome like a Marine...with little budget...and old equipment...but the Marines always get the job done...

A Navy Corpsman (Ret)

When I'd been in for about a year and had two stripes and three ribbons I passed through an airport in North Carolina close to Camp LeJeune and a couple of shavetail enlistees engaged me in conversation while I was waiting for my wife to pick me up. They were absolutely in awe of my ribbons ( Nat. Defense, Marksman, and Outstanding Unit Award, as I recall ) and stated that they couldn't wait to get to Nam so they could kill some Cong and win the war. I was astounded but my wife who was from Pamlico County said that these were simply "the Marines". I never forgot their enthusiasm and hoped that they made it back home.

I think it has more to do with the draft as well. The inherent resentment of being drafted is drummed out of Marine recruits, not so much Army. So the gripe-culture is that much stronger in Army. How often do you hear, "It's a soldier's right to complain."? You never hear that from a Marine.

Unfortunately, that individual who signs to join the Army may little or no pride in themselves...we all bring our baggage from home.

Because they aren't Marines.

My basic training took a punk kid and made him a soldier! I was able to concentrate on AIT and become the soldier I needed to become

I think the basic reason is that the Marines have a much stronger sense of tradition. Their non-tactical uniforms haven't change much since before WWII. The 1st, 2nd and 3rd Marine Divisions are still made up of the same regiments that fought the Japanese. Many of their support units (transport, supply, etc.) are still on the active rolls. The Corps doesn't putz around with their enlisted ranks, again few or no changes since WWII. I think you get my drift.
The Army on the other hand is in a constant state of flux. Units are constantly changing. Some go, others are converted from one branch to another (i.e. the 33rd Armored Regt (formally belonged to the 3rd Arm Div is now the 33rd Cavalry Regt. and is with the 101st Abn Div), still others are created new.
Since I retired in 1988, the Army's non-tactical uniform is about to go through its third iteration (Greens to Blues to Brown, (again)).
On the subject of enlisted ranks, I could write a book on the subject - the "Tech-ranks" of WWII, gone. The "Specialist" ranks come and except for Specialist (E-4), gone, Sergeant Major > Command Sgt. Maj > Sgt. Maj. of the Army. Oh, I mustn't forget the Warrant Officer ranks - they are now commissioned and have grown to 5 (WO 1 > MWO 5)
I understand the need to adjust and meet the requirements of changing missions and strategic challenges, but the Corps is able to adjust and meet those needs and keep its traditions. The Army would do well to learn from the Corps.

Mostly it comes down to personal pride. Like Gunney Boggs said, being over weight and UNSAT, it's up to the individual to stay squared away. A superior shouldn't have to tell you to do that. Individual pride leads to unit pride and branch pride. You don't have to be a Marine to be transformed. Transform yourself and you'll inspire others to follow.