I was right to have admired him.

上面一句摘自2016全国卷Ⅲ完形填空。请专家老师分析一下它。be right 后面可以接不定式吗？甚至不定式的完成式吗？句子是什么意思？好像与上下文衔接不上啊!

附全文如下（所填单词已补上，这是一篇完整的文章）：

When I was 13 my only purpose was to become the star on our football team. That meant beating out Miller King, who was the best player at our school.

Football season started in September and all summer long I worked out. I carried my football everywhere for practice.

Just before September, Miller was struck by a car and lost his right arm. I went to see him after he came back from hospital. He looked very pale, but he didn’t cry.

That season, I broke all of Miller’s records while he watched the home games from the bench. We went 10-1 and I was named most valuable player, but I often had crazy dreams in which I was to blame for Miller’s accident.

One afternoon, I was crossing the field to go home and saw Miller stuck going over a fence—which wasn’t hard to climb if you had both arms. I’m sure I was the last person in the world he wanted to accept assistance from. But even that challenge he accepted. I helped him move slowly over the fence. When we were finally normally on the other side, he said to me, “You know, I didn’t tell you this during the season, but you did fine. Thank you for filling in for me.”

His words freed me from my bad dreams. I thought to myself, how even without an arm he was more of a leader. Damaged but not defeated, he was still ahead of me. I was right to have admired him. From that day on, I grew bigger and a little more real.