Dude, I wouldn't worry about it at all. I do it all the time and my Facebook Pages are still up and running.
One thing to keep in mind: on Facebook, a lot of Clickbank product names and links are banned by default.
Which means that if you try to insert a direct link to an offer as the Buy Now button, it probably won't work.
But if you use another website to redirect it through, or maybe a link shortener if you're lucky - it should do the trick.
But you literally have nothing to worry about. Technically when a user clicks your link they come to a website where there's a possibility of making a purchase. So you're not exactly lying or anything
