I've already explained why this interpretation is wrong. Your interpretation is only "clear" if you ignore context and prooftext. The rich man's response to Jesus's challenge reveals his attachment to wealth, even as he stands before God Himself who has the rich man's best interest in mind. (Consider also John 12:1-50.)
The message is that spiritual goods are superior to material goods, and that the former should be prioritized over the latter, or that the latter ultimately exist in service of the former. The wealth of the rich man is not the source of his obstacle to spiritual good; it is his attachment to his wealth that stands in the way.
The message is that spiritual goods are superior to material goods, and that the former should be prioritized over the latter, or that the latter ultimately exist in service of the former. The wealth of the rich man is not the source of his obstacle to spiritual good; it is his attachment to his wealth that stands in the way.