Answer: The benefits of having a positive work ethic is that ur able to get things done faster and you also become a very organized person when it comes to ur time.
A negative worth ethic impacts the company by holding the company back by not getting things done in time or for being unorganized and it can cause you to get fired/replaced from job.
English morphological rules detail how words relate to other words. Thus, my best assumption would be because BOLDEST is an adjective whereas BOLDLY is an adverb.
