Taking advantage of the absence of shukuro (senior vassals), Ienari began to indulge in extravagance which, compounded by the increased expenditures for coastal defenses against the threat of foreign ships, set off the collapse of bakufu finances, corruption within the administration, and the deterioration of public morals.
さらに家斉自身も宿老がいなくなったのをいいことに奢侈な生活を送るようになり、これに度重なる外国船対策として海防費支出が増大したため、幕府財政の破綻・幕政の腐敗・綱紀の乱れなどが横行した。