This is an interesting questions. As we look around today,we still tend to shy-away from people that can be affected by the Gospel. If the Lord was here today, we know He would not shy away, but say the same to us personally, as He tells us in His Word:
I have not come for those who are well, but I have come for those who need a doctor (Spiritual Sickness)
Some of those individuals that come to mind are:
Politicians, People with Aids,The Homeless, and those Religious Groups/People that water down God's Word. It should be reminder to us that we need to take every opportunity share the Good News with who ever and when ever we can.

Well. Tax-collectors are those we consider "beyond repair," who betrayed our cause, our nation, and our religious tradition, and for whose there is no chance of repentance; lepers are those whom we try to avoid in order not to get contaminated; and Samaratinas are those whom we consider to be our enemies.
Now, it depends where we stand to make it concrete and put names. Yet, it can be risky because someone may get offended.
Although not a quaker, yet I am drawn to that tradition, particularly to its pacifism, equality, and that there is something of God in every human being.
Perhaps, that could guide us to distinguish who is in need of our presence by being pushed at the margin of society for any reason, and bring to him/her a realization that s/he is a child of God.