Irrational to want it

 

I don't think that terminal values can be characterised as rational or irrational. 

Instrumental values are often irrational, if it isn't the best way to achieve my terminal value. For example, if you value a certain internship because you want to get a certain job, that might be irrational if you have reason to believe that you can just as probably get the job without the dang internship.

But if you, say, like eating tasty foods, just 'cause you like it, that cannot be rational or irrational. The binary simply doesn't apply. It's like asking whether a brick is living or dead. It's like asking whether an apple is rational or irrational.

Terminal values can conflict with each other! If you enjoy eating tasty foods, but also enjoy not having cavities, then maybe you will refrain from eating tasty foods because your enjoyment of cavity-free chompers is a stronger terminal value which prevails over the weaker value of tasty food. That doesn't mean that the weaker terminal value is irrational.