Well, yes, telos is the basis of value and the good. It is the only objective basis for ethics and morality. What is good is always judged in relation to an end which determines the norm. For human beings, the objective telos inherent to human nature is what determines what a good human being is like, and what a good action is, etc.

As a result, our actions are either for the sake of this good as determined by human nature, or deviate from it. Ask what the ultimate end of human beings is and you will begin to put your life in order. A failure to do so means you serve some other end, perhaps one you do not realize you are serving.