Regardless of whether the direct descendant of the Minamoto clan (if there actually was such a thing) was Settsu Genji or Kawachi Genji, the main samurai family lineage was Kawachi Genji that began with MINAMOTO no Yorinobu, who was a younger brother of Yorimitsu who based his activities in Kyoto, and who established his forces in Bando (old Kanto region) and became the samurai leader family.
源氏嫡流（かりにそのようなものがあったとするならば）が摂津源氏か河内源氏かはともかく、武門の主流は、京都を活動基盤とした頼光の弟の源頼信にはじまり坂東へ勢力を扶植し、武家棟梁となった河内源氏のものとなる。