^ Maybe you're right; I don't claim to have any great insight into Smith's thinking. But he did refuse to participate in a gay kiss for Six Degrees of Separation (though he's since said he regrets it) and he wanted The Matrix to be re-written to suit his usual screen persona. I can't think of anything on his repertoire in this vein and I think he's been very conservative in his movie choices, staying well away from indie directors and QT-type fare.
The Travolta comparison hardly bears scrutiny - Travolta was a total has-been at the time of PF and his most recent prior hits in the Look Who's Talking series were total surprises (for both him and voiceover star Bruce Willis, who also was in PF). Smith's career is nowhere near that level.