Putin's wealth: $70B - $200B, concealed.

Modest salary: $140,000; lavish assets owned.

Complexity: Offshore accounts obscure wealth.

Global deals: Real estate, tax havens utilized.

Bank Rossiya: Alleged personal fund stash.

"Krysha" system: Businessmen's protection.

Associates aid: Kovalchuk manages assets.

Leaked papers hint: Panama Papers reveal.

Elusive targets: Sanctions difficult to apply.

Systemic corruption: Wealth redistribution.

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