Chuck Norris wasn't that big a deal, man. His biggest releases were all with Cannon. If you know what Cannon was, you'd know why that's not great.

As for Jackie Chan, he didn't really play "tough" parts, he was generally a goof who got into trouble. Tough wasn't his persona. He was like the Tom Hanks of martial arts movies. Or Buster Keaton more accurately.

If you think being marketable isn't an important part of being a movie star... I really don't think you know jack-shit about the subject there. Sorry to say.