Technology has advanced, and the methods of sacrifice have kept pace with the times.
In ancient times, when information technology was underdeveloped, a ceremony could involve at most a few thousand participants; any more, and the venue would be too crowded, severely limiting the scale and efficiency of the worship.
With the high development of modern information technology, it is effortless to carry out large-scale sacrifices involving hundreds of millions of people.
As for the effects?
To be honest, Wang Ran was also unsure; he didn't know whether cloud sacrifices would be ineffective, nor whether the God of Wealth would receive the message.
But it should be possible.
Sacrifices require sincerity for spirits to respond; the emphasis lies on being genuine.
In this materialistic modern society, even if people don't ask the God of Wealth to bless them with riches, at the very least, they will pray that the God of Wealth doesn't let them lose money.