The key question one should ask is where the money came from?
The answer is Keralites moved out of the state for work and sent back most of their earnings. What is useful is if Kerala is able to encourage home built businesses that brought in the money while keeping the Keralites inside.
> The valuables have been accumulated in the temple over several thousand years, having been donated to the Deity, and subsequently stored in the Temple, by various Dynasties, such as the Cheras, the Pandyas, the Travancore royal family, the Kolathiris, the Pallavas, the Cholas, and many other Kings of both South India and beyond.[10][11][12][13][14][15][16] Most scholars believe that this was accumulated over thousands of years
The answer is Keralites moved out of the state for work and sent back most of their earnings. What is useful is if Kerala is able to encourage home built businesses that brought in the money while keeping the Keralites inside.