Both Uses

monopoly
in
An Enemy of the People
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I propose to raise a revolution against the lie that the majority has the monopoly of the truth.†
Act 4 *
That is why I maintain that it is absolutely inexcusable in the "People's Messenger" to proclaim, day in and day out, the false doctrine that it is the masses, the crowd, the compact majority, that have the monopoly of broad-mindedness and morality—and that vice and corruption and every kind of intellectual depravity are the result of culture, just as all the filth that is draining into our Baths is the result of the tanneries up at Molledal!†
Act 4

Definitions:

(1) (monopoly)
complete control over a product, service, or resource -- usually by a single person, company, or group
(2) (meaning too rare to warrant focus)