I believe that seeking external validation, inspiration and/or reason is not robust and a path to unhappiness. IMO, it's better if the reasons for you to care come from within.

The reasons to care are personal pride in the quality of your work, understanding that your lack of effort has a negative impact on your colleagues, and your continued employment.

And if you hate your job, but are completely unable to find alternative employment (which is what you should do if you hate your job), you probably should reconsider how much you hate your job.