Absolutely.
I can't remember who said this, but it's an observation that stuck with me. Both Keaton and Bale recognized the absurdity of putting on that costume. But whereas Keaton embraced it, Bale fought against it. The only way it made sense for Bale to put on this costume was to put anger into everything. Screaming in criminals faces, always talking in a throaty growl. But for me, that only ended up making it even more absurd - simply comical at times. Keaton internalized. So you got the icy stare and the calm whisper of someone in control. He didn't compensate for the inherent camp nature of the suit by projecting a large personality over it ("People will only take me seriously in this thing I'm in angry all the time."). In a way, Keaton's complete disregard for the silliness of this thing on-screen helped make it seem less silly. And frankly, his particular result worked better for me.