the best definition of prosperity is being secure in your source, not flush in your bank account.

The greatest danger My people face today is prosperity, blessings that reinforce the false hope that nothing serious will ever go wrong in their lives if they just keep believing, expecting, trusting, and smiling.

1 Timothy 6:7-10
A devout life does bring wealth, but it's the rich simplicity of being yourself before God. Since we entered the world penniless and will leave it penniless, if we have bread on the table and shoes on our feet, that's enough.

But if it's only money these leaders are after, they'll self-destruct in no time. Lust for money brings trouble and nothing but trouble. Going down that path, some lose their footing in the faith completely and live to regret it bitterly ever after.