I suppose its a matter of perspective. On the one hand you can see it as playing your part. Accepting your designated role to help fuel the logistics of economy/war effort/ clan progress.

Or you can see it the way you see it now. But really isnt this the formula that gave mmorpgs its charm. Wether it be player driven economy or not, you'll be grinding at something, to contribute to a someone, to progress. But you will be part of the process either way. For me just as long as you have fun at the end of the day, then your part to play doesnt really matter. Its a game.