When we give our lives to Jesus, we flee "a world corrupted by lust" — lust of the flesh, lust of the eyes (1 Jn 2:16, KJV), sexual lust, and lusts for money (Eph 5:5; Col 3:5), power, pleasure, etc. As strong as our lusts are, we are not happy when we give in to our lusts, for they tend to make us like animals, to dehumanize us. If we are even slightly honest, we must admit that our lusts motivate us to treat people as objects to be manipulated and enslaved for our gratification. There is something sick and perverted about our lusts. Therefore, we rejoice that in Jesus we can flee "a world corrupted by lust."
The Lord calls some people to flee a lustful world by being monks, consecrated virgins, nuns, or religious brothers. These people are like Jesus, "signs of contradiction" (see Lk 2:34). However, the Lord calls most people to be in the world but not of it — to live in the world but to have fled from its lusts. While being crucified to the world and the world to them (Gal 6:14), they live in the world. Consequently, the world hates them (Jn 17:14) for their righteousness and purity in the midst of its lust (see Wis 2:12, 16).
Rejoice in whatever way you are free to flee "a world corrupted by lust" (2 Pt 1:4).