His career lasted far longer. He had big movie appearances for 30 years, none of those people accomplished that.
Norris' first movie role was in 1968, first big credited appearance was 1972, Walker Texas Ranger finished in 2001.
I think that's a hard argument to make.
Candace Bergen's career was just as long. Her first movie role was 1966, she was nominated for an Oscar in 1979, and she was on a popular sitcom from 1988 to 1998 that won her five Emmies and attracted national commentary after criticism from the Vice President.
I was a kid in the 80s and 90s and to me even then Chuck Norris was a B-movie self-parody joke character. He was not an A-list "action star" in the sense that Schwarzenegger, Stallone, or even Van Damme were.
Those who cared would/will know him regardless. But obviously those people would be relatively few and far apart.