Nope, you can only integrate it as XFBML and iFrame. Since most platforms like Twitter/Youtube don't allow this sort of injection, especially in Tweets/comments

Nope, you can only integrate it as XFBML and iFrame. Since most platforms like Twitter/Youtube don't allow this sort of injection, especially in Tweets/comments, you're just out of luck. Facebook also could potentially ban your page/suspend your developer account for violation of the Brand Resource Policy (all Like buttons have to be just that—Facebook Like Buttons.)