Primarily that's the goal we see within our initiative, within GIV3. It is not to unfairly penalize the government in terms of costs, but instead to encourage and incent.
In our experience, what happens is that at the higher-income levels people stop at an absolute level. They may have a huge salary and give $1,000, look around and ask who else in their neighbourhood gave $1,000, and go, “Great; then I'm done”—not realizing that $1,000 may be a quarter of 1% of their salary.
What we feel we need to do is in a sense define a new norm. I've seen this in my fundraising experiences. People don't like to be taken advantage of and give far more than anybody else, but neither do they want to under-give. If everybody in the neighbourhood is giving $100 and you only give $25, then somehow you feel cheap and not keeping up with the Joneses.
Part of what needs to be done...and we see this in various religious institutions and groups. They define a certain level, and their members live to that level.