How to Affect the World
If you want to help the sinner in the World, tell them the gospel (1 Corinthians 15:1-8 [ see verses 1-2, also], and Romans 10:9, 10:10, and 10:13, both of which passages explicitly say that this is the method of salvation - believe His work and confess Master Jesus). Righteousness comes (only to the Christian) by believing the Resurrection (Romans 10:9b-10a)! That's the spiritual way to help people, as opposed to our soulish, philosophical methods. Just tell them about sin, death, Hell, the Lake of Fire, and that Master Jesus Christ became sin for us to die for our sins even though He never sinned, and He was our substitutionary sacrifice to God's justice, but we must believe those 4 particular things (found in the 1 Corinthians passage, like Paul affirms over the first 2 verses of chapter 15) and do that 1 thing ("confess with your mouth Master Jesus"). You cannot affect the World, except by this means, or if you do affect the World outside this, then they will only use what they gain from you to become more evil by using your righteousness as their cover, because every human being of the World is bound by evil and evil is all they can do. Find ones whom God has made a part of His Church, according to the Scriptures, first, and then perhaps you and they can pray to be strengthened by God to affect them rightly, to God's glory and to our great gladness!