The elders who rule well are to be considered worthy of double honor, especially those who work hard at preaching and teaching. For the Scripture says, "YOU SHALL NOT MUZZLE THE OX WHILE HE IS THRESHING," and "The laborer is worthy of his wages." (1 Timothy 5:17-18)
Paul quotes the same OT passage in 1 Corinthians 9 as well. Although it was Paul's conviction to preace free-of-charge: "What then is my reward? That, when I preach the gospel, I may offer the gospel without charge, so as not to make full use of my right in the gospel." (v. 18) he did not impose his personal beliefs on others.
If we sowed spiritual things in you, is it too much if we reap material things from you? ... Do you not know that those who perform sacred services eat the food of the temple, and those who attend regularly to the altar have their share from the altar? So also the Lord directed those who proclaim the gospel to get their living from the gospel. (v. 11-14)
It would appear that each individual has the liberty to make this decision as the Spirit leads. Would you agree?