Despite the number of denominations, there are very few that require baptism and loyalty to the organisation as proof (or a clear indication) of being in line for salvation. The majority that encourage baptism never say your salvation depends on getting baptised, let alone being loyal to their organisation / denomination. The Bible is clear that it is only receiving the grace of God after putting total faith in what Jesus accomplished at Calvary that makes one a member of Christ's Church, which is His spiritual body. It is the indwelling of God's Holy Spirit in the believer that is the guarantee of the glory that is to come:
"And you also were included in Christ when you heard the word of truth, the gospel of your salvation. Having believed, you were marked with a seal, the promised Holy Spirit, who is a deposit guaranteeing our inheritance until the redemption of those who are God's possession - to the praise of his glory." (Ephesians 1:13-14)
I only know of one denomination that tells 99.9% of its members that they cannot expect to have this seal, the guarantee of the Holy Spirit. They also insist that before getting baptised, members must agree to be identified with their organisation. They say this organisation is 'spirit led' (notice the lower case in 'spirit'?) but that most of the leaders are anointed with this spirit. In other words, some of the Chiefs have this guarantee that they belong to Christ, but none of the Indians do. They can only hope to be saved eventually if they show enough loyalty to the leaders of this organisation and do lots of things for at least 1,000 years into the future.
This is not so much about money (though that comes into it too). It is about the abuse of spiritual power. I think Jesus' words in Matthew 24:48-51 apply.
Edit: As someone asked for proof of the claim, here it is. I wasn't going to name this group, but it will be obvious from the organisation's publication details. This is from the June 1, 1985 Watchtower. detailing the two vows baptismal candidates must assent to before getting baptised:
"On the basis of the sacrifice of Jesus Christ, have you repented of your sins and dedicated yourself to Jehovah to do his will?
Do you understand that your dedication and baptism identify you as one of Jehovah's Witnesses in association with God's spirit-directed organization?"
This change may have been made primarily due to legal issues. The society needed to be able to legally make statements like the following when action was taken against them by JWs who left the organisation: (this is from an actual letter, and would be wording used in many letters):
"From the date of your baptism and your joining the organization of Jehovah's Witnesses, you professed the Christian faith, agreed to adhere to the doctrine of Jehovah's Witnesses and agreed to submit to the rules and procedures of the ecclesiastical government of Jehovah's Witnesses."