A word for advantages gained by sabotaging competitors
Solution 1:
I would call them ill-gotten gains. I believe this could apply to the intangible.
Obtained in an evil manner or by dishonest means: ill-gotten gains.
Solution 2:
I can't think of a single word for unfair advantage, but I suggest the following:
- The company had gained an unscrupulous advantage.
- The edge was earned through dishonest/crooked/unfair/dodgy means.
- As cornbread says, the company's advantage was ill-gotten.