The Catholic Church probably gives more to charity than most other groups in the world. Some Christians (and non-Christians would love it if we stripped our Churches & Cathedrals of the things pointing to Heavenly realities, but it would never be enough. It still would not satisfy them.
God designed the Ark of the Old Covenant. He did not make it out of simple materials. He even told them to ornate it with statues of Cherubim. You can read about this in Exodus 25.
Mary is the Ark of the New Covenant. Jesus was born into poverty. And yet, He was the greatest King to ever live. Our Churches are ornate, because it points to a greater reality. The awe and beauty of our Churches point to the deeper beauty and depth of God’s love. It takes your breath away. It is meant to humble us. That is why the doors of well-designed Churches are very large and heavy. The steps elevating us as we enter into these Sacred places of Worship are meant to humble any human (including earthly kings and leaders). Because God is greater!
How much would be enough? Do you have a dollar amount? How much?
I agree with you that covering up abuses is wrong. I think most Christian Churches plagued by sin & scandal would agree with you and me.