Radiologists aren't monolithic. Some never want to leave their chair; others would be happen to do procedures all day, every day. Personally, I find a handful of procedures a nice way to break up the day and get me up and moving. Too many, combined with all of the other interruptions and distractions, and they quickly become burdensome. There are jobs out there for both ends of the spectrum and most points in between.
Generally speaking, if you compare the time it takes to do a procedure to the studies that I could read during that same period, then I would generate more revenue doing the latter. Of course, that's not the whole story. For one, procedures - especially ones I've done thousands of times - let me rest my brain to an extent, making me more productive when I return to the list. Secondly, doing procedures keeps other physicians happy, which hopefully keeps the hospitals' suits happy. Refusing or not offering them is a great way to risk your hospital contract.