Information Repeated Accross Your Application

So, I know this is pretty random but I was working on my resume this week and as I'm writing about work, activities, etc I got to thinking.... A lot of the stuff on my resume will be repeated in essays and other parts of my application. For example, under work experience I have bullets that summarize and quantify my most significant work achievements - but then one of those achievements (my best one) is likely to be the basis for one of my essays. Also, under my activities I made a brief comment for each about my most significant accomplishment there. One of those is my best leadership example - so I'm sure that will be an essay. Plus, the activities info will probably be repeated again on the application data forms.

So, my question is this - Is it bad to have information repeated accross your application like this? Does it make it look like you have a limited number of accomplishments and therefore need to mention them over and over again? If it is bad, how do you fix it? It seems like I would want to list my biggest work and EC accomplishments on my resume right? But then I would also want to write about my biggest accomplishments in my essays too. Maybe its ok because resume/data forms are brief summaries and essays are where you expand (on the same events/accomplishments, etc)? Oh and btw, I feel like I should mention that there are of course other points/accomplishments, etc that are mentioned on my resume that will NOT be the basis of an entire essay (for these the resume will be the only place on my application that these accomplishments appear - unless my reccomenders talk about a couple of them).

I know it's kind of random but its just been really bugging me.