Why don’t we use it much in Canada? Maybe because we’re more likely to practise it naturally. “Playing hardball” doesn’t get admiration here the way it does in the USA.

Of course we pay a price for our civility: we put up with things that Americans will fight against. (Well, except when it’s a “war”, like on Commies, or drugs, or terrorism.) As Robert A. Heinlein put it, “You can have peace. Or you can have freedom. Don’t ever count on having both at once.”