Even a Super Bowl victory can ring hollow, he noted.
"It's not a completely satisfying thing," said Stover, who won another ring with the New York Giants in 1991. "Completely satisfying is my salvation in my Lord and savior. Winning a Super Bowl is fleeting because it took one week before someone asked me if we could win the next year.
"The reality of our world is they always want more."
Being complacent can spell doom on and off the field, Stover said, as evidenced by the Super Bowl rings that retired players have sold in auctions over the years.
"I do know some guys whose identities were in football," he said. "That's not a healthy place, because your football career is coming to an end. It's not if, it's when."
Stover points to former Ravens quarterback Trent Dilfer as someone who used the Super Bowl win to build a career. Viewed as one of the least-recognized quarterbacks ever to win a Super Bowl, Dilfer, now 40, is a top ESPN football analyst, and his championship provides him more credibility to make his points.
"He can go in there and say, 'Look, I may not have the numbers that prove that I'm the best, but I did go in there and win a Super Bowl,' " Stover said.
For Dilfer, Siragusa and other players, a championship can burnish careers and raise profiles, said Adam Naylor, a Boston University sports psychology professor who has worked with several professional athletes. Just look at Drew Brees, the New Orleans Saints' quarterback, who is featured on Pepsi ads.
"Drew Brees was always good, but winning the Super Bowl made him amazing," Naylor said.
After Flacco had two strong playoff performances, including a dramatic double-overtime win over the Denver Broncos, late-night TV talk shows and national advertisers began asking to feature him. Contract adviser and marketing agent Thomas Kleine expects that demand to grow if his client wins the Super Bowl.
"It'd be silly to think other doors and future doors won't open during a Super Bowl win," said Kleine of JL Sports. Though Flacco isn't the type to seek the limelight, he understands the value of the marketing opportunities that might come his way, Kleine said.
So does 36-year-old Raven Matt Birk, who plays the glamorless position of center and is at an age when many NFL athletes consider retirement.
"Every time Matt gets in front of the media now, it's going to open up opportunities for Matt," said Kleine, who represents the Harvard University graduate. "Matt is a CEO playing center. Whatever Matt puts his mind to, he's going to be successful whenever he hangs up his cleats."
Super Bowl exposure can even help little-known players. Al Packer's White Marsh Ford recently used backup offensive lineman Gino Gradkowski in a Super Bowl promotion, and the 24-year-old is garnering more interest from companies who also want to use him, Kleine said.
But not every Raven who wears a Super Bowl ring has prospered.
Jamal Lewis was just a rookie running back when he played a central role in the Super Bowl in Tampa. He played eight more strong years, breaking NFL records and earning a spot in the Ravens Ring of Honor.
But he also served four months in federal prison after pleading guilty in 2005 to using a cellphone to facilitate a cocaine deal. Last April, he filed for bankruptcy in Georgia.
He acknowledges mistakes to fans on his website and says his football accomplishments remind him that he can succeed again. The son of a Marine, Lewis, 33, said he is creating a lifestyle brand, retail business and a program to help youths stay on track.
"I do have a Super Bowl win," he said. "I have won. People know I can succeed. It's instilled in me."
Jermaine Lewis, 38, another former Raven who has struggled outside of football, said he never really had an opportunity to celebrate the Super Bowl win. Mourning the loss of his stillborn son, Geronimo, Lewis played the latter half of the 2000 season in a daze even though he was a catalyst in the team's playoff push.