More-so than tradition or honour's? Quicker settler build time is only useful early on generally and quicker worker speed is pretty marginal considering how many workers you end up getting in any conflict with the ai or through stumbling across barbs holding them. Some of the other bonuses are useful if you have enough cities, but the policies don't exactly help you get to the point at which you have enough cities to make it valuable and if you have that many cities then chances are you are already dominating in the game.
The free settler and worker are comparable bonuses to the extra wonder or melee unit production from tradition/honour (and about as good as a free GG or legalism). The two really powerful policies are the finisher (a free great person?!) and meritocracy, which is valuable regardless of how dominant you are.