I've been looking at the principals on which she bases her ethical system: Love your enemy.

Maybe there's only one kind of ethical system that works.

Presumably not, but this is what his "ethical system" calls for.

Sailing in Maine is not a sport but an ethical system.

Further, they are not required to build a unique ethical system, applicable only to their own business.

The problem is the justification of an ethical system.

"We believe it will increase the impact of training on shaping the young person's ethical system and field behavior."

All these not to mention various religious ethical systems.

It does not hold them, in his words, "hostage to the tyranny" of an ethical medical system.

The particular ethical system may not prescribe each of these.