That’s in spite of (1) the rise in commercial development and support for FLOSS, (2) most FLOSS projects’ goal to incorporate improvements (which are actually a form of financial gain), (3) official definitions of “commercial item” that include FLOSS, and (4) FLOSS licenses and projects that clearly approve of commercial support.
But that covers one definition of commercial; if you include the wider definition of “commercial” that means public trade, nearly all FLOSS projects are commercial.
But in all cases, all commercial developers (proprietary or FLOSS) expect their users to obey the license provided or negotiate something else, as is required by law.
Most commercials are produced by an outside ad agency and, and airtime is purchased from a channel or network in exchange for sponsorship of its programming.
The first television commercial was in July 1941 when the Bulova Watch company paid $9 to WNBT for a commercial aired during a baseball game between the Brooklyn Dodgers and Philadelphia Phillies.
The effect of television commercials upon the viewing public has been so successful and so pervasive that it is considered impossible for a politician to wage a successful election campaign, in the United States, without airing a good television commercial.