Principles and Principals: Work = Fun?

I work hard. I teach with all my heart, I plan, I research, I write, I speak, I go and go and go. My problem is that while much of that should be fun, it often doesnt feel like fun. It feels like work. Actually it feels that way most of the time. It feels like I have a career and I work in hopes that a) I will have an impact on the teachers I work with such that they change the ways they work with the students that they will have and b) so that I can live with myself. Case in point: This last semester I was CRAZY busy. I had thesis students coming outta my ears and was teaching 6 college level classes with a practicum. Nutty overwhelmed. I went to my boss and, laying my head on his desk, told him I needed help. He first told me to write a proposal for a TA (we dont get any assistants normally), and then to stop giving projects such as data analysis or case studies which require a lot to grade and give instead a multiple choice tests and final "like professors normally do." So, my moral and ethical obligation to the teachers (have them ready to use data and teach about data, have them able to test children and write case studies that are strength and weakness based) didnt seem to matter to the Chair (my boss). His "tip" was to toe the line and make it easier on myself. BUT, this is big time work here! How can I give up what I believe in to make it easier on myself? How can such a workload be fun? I hear mostly complaints from students who say my class "has too much work," is too "hard," and their grade "lower than any other class." Students complain about working hard, I complain about working hard (just not to them) and I wonder, should one give up their principles just as a principal often does when they forgo good teaching expectations in favor of testing obligations, or is it even possible for work to be fun? How does one find the fun? Sometimes we all need a photo op?