Built to Last, what is good about it...???

In the book built to last, there is comparison between two types of companies, there are visionary companies and on the other hand there are comparison companies. Comparison companies are not dog companies rather they are good but not to that extent where visionary companies are. The good point is, comparison between the companies is not like that one company is more than just "successful" and on the other hand comparison company is completely a "looser". Book mentioned this thing as the comparison between the companies is like gold medalist with silver OR in some cases with bronze. So, the comparison is very logical and very helpful, not just comparing those things were comparison is not even possible or fair.