It is hard to understand the motives of other Christians. Paul records, “Some, to be sure, are preaching Christ even from envy and strife, but some also from good will; the latter do it out of love, knowing that I am appointed for the defense of the gospel; the former proclaim Christ out of selfish ambition rather than from pure motives, thinking to cause me distress in my imprisonment. What then? Only that in every way, whether in pretense or in truth, Christ is proclaimed; and in this I rejoice.” (Php 1:15-18). You be encouraged in Christ as Paul was. Do not be caught up trying to discern the ministry motives of other Christians, which are Jesus’ problem, not yours.