Temptation is rarely about the sin itself, but rather, about the heart that is ready to engage that sin. Jesus, after having His identity affirmed by the Father, has that identity challenged. Through the temptations to be relevant, popular, and powerful, Jesus affirms that He is indeed who God says that He is.
We live in a world where our identity is determined by what we've accomplished. Jesus's model is the opposite: His declaration of love for us happens prior to anything we do and is never based on our performance. Rather, who we are is based solely on who He's made us to be.