It does not take a majority to prevail … but rather an irate, tireless minority, keen on setting brushfires of freedom in the minds of men.
— Samuel Adams
In The Most Intolerant Wins: The Dictatorship of the Small Minority, Nassim Nicholas Taleb describes how a strong enough minority with more strict preferences can end up with the majority following their preferences. He speaks of many examples — food preparation standards, languages and taboos.
This principle can also extend to Bitcoin and the concept of soft forks. By extending this principle, it can show that a soft fork that has strong support from a minority still may be enough to provide economic incentives to its enforcement, even if the majority is ambivalent.
Soft forks, by their nature, are a form of intolerance. Users who enforce a soft fork are intolerant of some types of transactions or blocks that miners can produce. They will reject those blocks that miners produce much as an Orthodox Jew will reject pork. In cases where the majority is ambivalent and the cost for producers is low to adhere to the stricter standards, then the result is producers keep everyone happy by following those stricter standards.