Changing Culture

So when I was heading home from my LDS mission my mission president* thanked me and the 15 or so other home-bound missionaries for the culture that we had brought to the mission. We were only about 15 of about 160 missionaries who were spread out across most of Indiana. How could we make a difference I thought, or at least a significant one. Some of the Elders were in leadership (one was an Assistant to the President and others were zone or district leaders) so they might have had a wider impact but  I just couldn't see it.
Last year I was a newbie in the Geology "gradcubes" (a room where 24 of the gradstudents have desks and partial cubicles). I was in the quiet row, where probably 70% of the time I was the only one sitting in my row and 90% of the time there wasn't conversations. Also, there were some conversations that went on in the other rows that were not the best quality.
This year I'm one of the second years, which means that some of the second years of last year (but not all) have graduated and moved on and some of the gradstudents that are my year have moved to other offices or rooms in the building, but overall between 15 to 20 of us are the same. But some people have also moved desks. This year my row is the talkative one and I have company probably about 80% of the time and conversations... well I'll just say I'm more distracted this year.  The conversations are often uplifting and/or educational.
Overall, the gradcubes have a different culture then they did last year, and only a few people changed. Even though the mission was a little different (more wide spread and bigger in general) maybe my Mission President could see it, could see how we impacted the mission culture as a whole.

*A mission president is "a 3 year, full-time, unpaid position to supervise, train, and help 290 or so missionaries." https://www.mormon.org/me/2TDZ/Paul