"an ultimate end," which sounds like it could be read as redundant

this is an example of what happens when you take lexicographical shortcuts. telos is the answer to the old question "how do you know when you've reached the end?" telos is the purpose or ultimate object or goal. it's a more philosophical abstraction than just 'the end'.

Reconceptualized slightly differently, most theories of business ethics enhance ambiguity by (rightly) introducing additional concerns that an ethical business corporation or person should take into account, but they do not prescribe a particular "aim" or "goal" or "telos" that is to be accomplished by ethical behavior other than for business behavior to be (again, quite rightly) more multifaceted than currently practiced. Unlike the Hawaiians, contemporary business ethicists do not possess the luxury of a four month long makahiki that allows people to rest from hard-headed business competition. Even though a seasonal makahiki is unavailable, business ethicists need to specify a good that can inspire the energies of people to pursue noneconomic goods. They need a metaphorical dance, a feast, or a symphony inspiring enough to motivate business leaders to pause from corporate warfare to celebrate makahiki in one's work. Put one more way, ethicists need to articulate a goal so compelling that economic analysis must give that goal space in corporate life.

I propose the telos of sustainable peace as an aim to which businesses should orient their actions both for reasons of the good of avoiding the activities that contribute to or make more likely the spilling of blood as well as for the good of sustainable economic enterprises, which are fostered by stable, peaceful relationships.
-Corporate makahiki: The governing telos of peace
American Business Law Journal, Winter, 2001

[makahiki, I gather, is a four-month Hawaiian festival to celebrate "new beginnings"]