I don't undersatnd what you mean by nowadays churches, because the gospel delivered to us by Jesus is the gospel of our prosperity. There is actually nothing to examine because Jesus already answered the question:

Mark 10:

24And the disciples were astonished at his words. But Jesus answereth again, and saith unto them, Children, how hard is it for them that trust in riches to enter into the kingdom of God!

25It is easier for a camel to go through the eye of a needle, than for a rich man to enter into the kingdom of God.


26And they were astonished out of measure, saying among themselves, Who then can be saved?


Why were they astonished asking that question if not because they themselves were loaded men?
Then Jesus gave His answer:


  27And Jesus looking upon them saith, With men it is impossible, but not with God: for with God all things are possible.

  28Then Peter began to say unto him, Lo, we have left all, and have followed thee.  

Then Jesus continued His prosperity preaching:

  29And Jesus answered and said, Verily I say unto you, There is no man that hath left house, or brethren, or sisters, or father, or mother, or wife, or children, or lands, for my sake, and the gospel's,

  30But he shall receive an hundredfold now in this time (NOW, NOT IN HEAVEN!) , houses, and brethren, and sisters, and mothers, and children, and lands, with persecutions (Persecution by carnal men who are envious of the prosperity of God's people)
; and in the world to come eternal life

Love ya.