Financial success does not guarantee happiness.
Conclusion
Financial success does not guarantee happiness (i.e. there are some people who have financial success, but not happiness).
Evidence
In a recent survey, only 1/3 of the people who claimed to have achieved financial success said they were happy.
Evaluate
If the survey respondents are saying the truth, then the author wins. If they are both financially successful and not happy, then the author's conclusion is true.
If we were trying to figure out how to make an objection, we'd probably have to argue that the survey respondents are not saying the truth. Maybe they're exaggerating their financial success and don't qualify on that level; or maybe they're unwilling to admit that they're happy (makes the poor people feel worse to hear a successful person say "I'm rich AND happy!")
Goal
We'll probably just rule out an objection to the survey or be told something that makes us feel better about the veracity of the data points in the survey.