I agree. Part of the reason Clojure sees production use and Haskell does not leave its academic closet very often is that the former makes interaction with the non-functional parts of a system painless.
I don't regularly use either one, but I was under the impression that the situation is rather the reverse: Clojure is quite popular among hobbyists but doesn't get a lot of serious industry usage (perhaps excepting some stuff in the web space, which I don't really follow), while Haskell has a bunch of industry users. I see ads for Haskell jobs pretty often, anyway, while I'm not sure I've ever seen a Clojure job ad outside of HN threads.
My experience has been in the reverse, which just goes to show you how bad anecdotal evidence is at proving any point. Without any hard data, it's impossible to say for certain. All I know is that there is definitely enough demand for Clojure work that I didn't have to search for any leads when I left my last job; I already had four promising prospects to choose from that either emailed me directly or messaged me on Linkedin within the previous month.
I believe Haskell has deeper industry adoption than Clojure does right now. You just don't see it a lot because haskell people aren't as focused on evangelism.
