Well, OK. Being a Canadian, you might not ever hear of
Dallas an '80s show covering Texas oil barons. The protagonist, J.R. Ewing, explained the difference between being involved or committed.
"It's like a ham and egg breakfast. The hen is involved, the pig is COMMITTED.
Being an American (like me), you ought to know that the quote you posted was originally used by NASCAR legend Junior Johnson back in the late '60s or early '70s, describing the difference between those who were
committed to racing and those who were
involved in racing. He was basically belittling the sponsors, owners, etc. who never strapped themselves into a car and hurtled around the track at Daytona at 200+ miles per hour.
Sounds to me that if J.R. Ewing weren't lifting quotes from someone else, he would be about as good a wordsmith as Patrick Ewing.