It's not all "jumping the Shark"... or maybe it is. I can easily see a label pushing to widen the fan base in effort to wring every dollar out of a band recently signed (before they screw up and get too wasted to work or kill themselves).
The only way to keep your favorite band "true to their music" is to listen to all the tracks (or samples of) before you invest in an album that you wouldn't normally waste money on. Eventually the producers will get the message when they aren't flying off the racks in stores.
Doug