I would think most people actually consider the applications from a very well rounded perspective. If you go back to the past posts, you would see that most people spend way more time discussing the optional essays than any other things "combined". People also talk a lot about essays, so I think saying people put too much emphasis on numbers is not an accurate statement. People talk about numbers because they are easy to compare, without sharing your essays here and have real adcom members comment and grade them here, how would you know who got a better essay? On the other hand, the gpa and GMAT (especially this) are relatively standardized, and is a good starting point. Also....speaking about focusing on numbers, I think it is important to reflect on the name of this forum, which is GMATclub not MBAclub.
I do agree with your opinion that getting a harvard inty or admission does not, and should not guarantee an MIT inty because of the fit. Glad to see at least a good number of people here are getting a good chance at getting in. Good luck to all!