Michael Sullivan did very well as general president of one of the country’s biggest trade unions — the Sheet Metal Workers’ International Association AFL-CIO — during the last decade, seeing his pay triple and then some, to more than $1 million annually.

Robert Scardelletti, international president of the Transportation Communications International Union AFL-CIO, didn’t do quite as well as Sullivan, but still managed to get by while seeing his pay almost triple in the same period, to nearly $750,000.