What I mean by that is that natives are more likely to work with neighborhoods and have a better understanding of local culture to promote and preserve locally owned businesses. They usually know the families, at least tacitly. When political outsiders enter a community as a stepping stone up the political ladder (eg the current mayor), they are much more likely to make deals to appease their donors and many times, non-native interests. This practice, by its very nature, deters locally owned businesses. To be certain, the corporatization of Boston restaurants, bars and retail has been occurring for the past 30 years, but even with the Mumbles and Walsh admins, there were a lot of newbies driving policy. This is true for the state as well.
I was in Phoenix recently and was truly impressed with the authenticity of the restaurant and bar scene. They do not have the extreme cost prohibitions to get a liquor license, which is a necessity for almost all restaurants. Where you have strict limits on the # of available licenses, you need the political support of local businesses or else they disappear forever. I am not overly concerned with what is happening around Fenway as it was always a dump, but changing policies in places like the North End concerns me. I am sure I am in the minority, but depending on my mood, I really prefer dives like the Penalty Box or Sullivans over Tavern in the Square. Perhaps its just the nostalgia of it all.