As a management consultant I was expected to grind out pointless "decks" (powerpoints) all day long. And all night long? Grind out RFP's for new business (which are usually more decks).
UX designers generally have a higher job satisfaction if they are with the right team. However, these jobs are difficult to get and easy to lose. Many of the UX designers I graduated with from HCI school are now looking into front-end dev, visual design and business strategy. Why? Because UX designers can easily become marginalized, and if all you can do is sketch and put together a few basic wireframes, you can quickly find yourself on the periphery of the team. You should see some of the bored/desperate emails I get from colleagues who either have 1) nothing to do or 2) don't get the respect they 'deserve'.