The battle between Naruto and Sasuke against Jigen had a significant impact on Boruto's character development. It made Boruto realize the true strength and sacrifices of his father, Naruto, as well as his mentor, Sasuke. This experience also motivated Boruto to become a stronger shinobi and to better understand the responsibilities that come with being a ninja. Additionally, witnessing the intense battle against Jigen helped shape Boruto's perspective on the dangers and challenges that exist in the ninja world.