Change the culture?

Following on from my thoughts about what we should take from a culture and apply to our own work, how much of our own work should be challenging certain issues within a culture and trying to transform that culture into a different one. Recently someone tried to offer a ree meal, people didn't come, I think because they were supecious fo a free meal, but why is this, if there no attachments then why be suspecious? My susggestion was to persist, and show that we can break that culture of suspecion. So if we can do it with suspecion, surely wecan change other issues withoin our culture by being the people that God wants us to be, and following principles in our lives.