If nobody tried to be the best, there wouldn't be anything good. Porsche may not be "the best" sports car overall as that is a very subjective metric. Though

If nobody tried to be the best, there wouldn't be anything good. Porsche may not be "the best" sports car overall as that is a very subjective metric. Though for sure, they make an exceptional car. For various definitions of 'reasonable', the 911 is the most performant car in at its price point (or at least, generally is, these things wax and wane). The key isn't whether they are the best sports car, but whether or not they're succeeding at being the best at ... something. That something may not be as broad as 'best sports car', but may be much more narrow. Twitter isn't "the best website" in the world, but it might be the best way to transmit short messages to a broad list of friends. Similarly, Dropbox might do very poorly in a "best system backup" utility, but might win competitions involving ease of use, or in being convenient enough that its users actually bother (which is better than most backup providers.) The companies that try to be all things to all people are few and far between, and us, as entrepreneurs, are thankful for them because all it means is we have to beat them in one small segment and they acquire us. ;-)