I seriously doubt that god needs me to live my whole life honouring and pleasing him. That doesn't even make any sense that god would make beings for the sole purpose of having drones to worship him, that would have to be one HUGE ego. I'll pass on that god and find one that's not so vain.
So no, you wouldn't. Which is precisely why you don't hear the Lord. You don't sincerely want to know Him.
Or else he's not really there because all he has to do is to show me that he's real and I'll believe.
No you wouldn't. You just admitted you wouldn't change a thing if you know God. You have no intention of believing a thing He would tell you. He knows your heart you can't deceive Him.
If God proves himself real to me, I'd believe. I live a pretty good life, so not really much if anything to change. Well, except give money to a church to be let into heaven.
That's not what relationship with and believe in God is about.
It's about realizing it is all about HIM. You think it's selfish, but to someone that knows God, it's an HONOR to live your life for Him and His Kingdom. Not only that, live is more FULFILLING and MEANINGFUL living as a Christian - live for God. Because a Christian knows life is eternal and our time on this earth is but a millisecond. A small sacrifice to make to live for Him during this tiny time of our life.
People give money to the Church for Evangelism and of course, salaries and building upkeep etc.
God wants your heart and your loyalty. And most of all - your love.