"The first apostles"? Were there more apostles than those identified in the Bible? I believe the days of the apostles are over (for over 1900 years); therefore, no one is an apostle today.
Was Matthew 28:19-20, Go ye therefore, and teach all nations, baptizing them in the name of the Father, and of the Son, and of the Holy Ghost: 20 Teaching them to observe all things whatsoever I have commanded you: and, lo, I am with you alway, even unto the end of the world. Amen, written only to the apostles? Or perhaps only to the apostles and those "readers that are in high places. Hopefully they’ll have convictions and take actions"?
Do you have no convictions? It seems apparent that you at least have convictions enough to point out what is wrong with other Christians. Don't you have convictions enough to help them see, and hopefully correct, their errant behavior? Remember that when your one finger is pointing out error in others, the other three fingers are pointing back at you.
You may not have a large sphere of influence, but God's sphere is boundless. Edward Kimball ("just one man") shook the world for Christ when he went to buy a pair of shoes (see D.L. Moody).