Four major titles mean the 29-year-old need never worry about money again.
He’s racked up a personal fortune estimated at just short of £100m since bursting on the scene as an 18-year-old amateur.
That was at Carnoustie back in 2007 when he won the Silver Medal at The Open as leading amateur.
Now he’s back at the famous links and desperately trying to get his hands on the claret jug for a second time and end a four-year streak without a Major win.
Hardly a crisis but the Northern Ireland star admits the carefree days with the wild mop of curls certainly have their appeal.
He said: “Could I get that hairstyle back? Probably. I don’t want to though!
“There are a few more greys in there these days. Looking back at the pictures, it’s funny – good memories.
“When I looked in the mirror back then, I didn’t think my hair was as big as it was. We live and learn.
“But I think sometimes the pressure that’s maybe put on the top guys to perform at such a high level, that starts to weigh on you a bit.
“But, yeah, I look back at those pictures and the more I can be like that kid, the better.
“Sometimes I need to get back to that attitude where I play carefree and just happy to be here.
“Back in 2007 it was my first Open. I mean, I was just trying to soak everything up and was just so grateful to be here.
“And I think that’s a big part of it. If you are happy in what you are doing and you’re just happy to be here.”
McIlroy says the memories of that first Open are still vivid. “I was bouncing down the fairways, didn’t care if I shot an 82 or a 62,” he recalled.
“And the more I can get into that mindset, the better I’ll play golf. I think as you get older you get a little more cautious in life.
“There is something nice about being young and oblivious to some stuff.”
“Sometimes I need to get back to that attitude where I play carefree and just happy to be here”
McIlroy plans on being in the mix come Sunday, adding: “I was on a nice run from 2011 to 2014. I haven’t won one since, but I’m trying.
“I’m trying my best every time I tee it up and it just hasn’t happened but I’ll give it a good go this week.
“I’ve had a decent career up to this point and I’ve got a lot of time left.
“When I was here in 2007 I hadn’t even turned pro and didn’t know what to expect or the journey I was about to embark on.
“To be talked about as one of the guys who could win and to already have one claret jug is nice but I want to add to my collection.”
For all the fame and the wealth, McIlroy insists, he hasn’t become big-headed.
“I’m very confident on the golf course,” he said.
“I try to limit it to there. You carry yourself more when you’re World No.1 and you feel really good about yourself but you need to have people around you who can knock you down a peg or two at times.
“Just because I’m a great golfer doesn’t mean that I should walk in before you in a line in the shop.”