It is not wrong for a spiritual leader to be wealthy, the bible has promises of blessing the work of the hands of the righteous. So it is not wrong for any spiritual leader walking with God to be wealthy. There are men like Abraham, Isaac, Joseph, David, Solomon, Job etc who were rich and wealthy but still walked faithfully with the Lord.
The only problem comes in when the focus of the spiritual leader deviates from his spiritual mission and is more focused on his wealth and riches or making more wealth. A problem also comes in when he uses the wrong ways to obtain his wealth especially these days when men of Hod use their poor christians and resources given for God's work foe their private gain. So, these are just some instances where his wealth is tagged wrong because he wrongfully acquired it or is too focused on becoming wealthy rather than performing his spiritual duties.
I will also like to reiterate the fact that it is not also a must that a spiritual leader must be physically wealthy. This is a notion that many ministers have used to force some true men of God to go into wrong things just so to become wealthy. The apostles were not rich mem physically but they were spiritually blessed and rich. A spiritual leader does not need to be necessarily rich to perform his duties. You can serve God whether rich or poor all thesame.
So it is not wrong for spiritual leader to be wealthy and it is also not a wrong thing or a must that a spiritual leader must be rich.
Spiritual leaders, being it an Imam, Pastors, Decon etc, are also humans just like the other members of the respective religious organization. They have families, mouths to feed, and personal life goals as well. Aside the spiritual roles that they play, some also have their respective jobs that they do to earn a living. I know of several pastors who are investors and invest money from their own pockets-not the church's offering- into several projects and organisations, and harvest huge profits with time. So basically, if it is not wrong for an ordinary member of a religious group to be wealthy, then I do not see how wrong it is for a leader of such religious organization to be also wealthy. It's sad and unfortunate that there are lots of unscrupulous and deceitful leaders around who steal money from the financial contributions of the religious organization they head. Hence, such bad image have gone a long way to affecting the disciplined and honest ones among them.
First of all i am a christian so i will answer the question based on my own religion and my own perception about the question you asked,,There is no where in the bible that states that a spiritual leader should not be
wealthy,infact it even encouraged the fact that a spiritual leader will never lack,,spiritual leaders also have the rights to spiritual blessing and earthly blessings so
there is nothing wrong if a spiritual leader is wealthy but the only wrong thing is when a spiritual leader is rich at the detriment of its followers and also when the spirtual
leaders do not lead by example by using their wealth to make the society better and take care of the needy in the society,,i believe a spiritual leader should be a very great philantropist and be able to touch lives because
being a spiritual leader is not only by preaching or praying but it is also by leading by example and also practicing what you preach...