Whereas people like The Old Took and Gorhendad Brandybuck were simply heads of family. (Bilbo possibly would have been one, but as it happened he never gained any family of his own, seeming to be very distracted with Elves and writing, and connected only with cousins and younger hobbits). Though we’re told Gorhendad was the Master of Buckland, this seems to have been in great part because he was the one who founded Buckland, built Brandy Hall, and was head of family to reams of Brandybucks and relations who lived either in the Hall or in smials or houses up and down Buckland.
And there is no notable suggestion of separations between class levels. All kinds of people were invited to the Birthday Party (Fellowship: A Long Expected Party) and about the presents Bilbo left behind for the many visitors we’re told “The poorer hobbits, and especially those of Bagshot Row, did very well”. And in Scouring of the Shire, Frodo, Pippin, Merry, Sam, Farmer Cotton and his boys, and later Gaffer Gamgee are gathered together at Cotton’s farm, planning and explaining. Frodo offers Mr. Cotton his assurance that the Bagginses will at least deal with Lotho.