I believe I already answered that possibility...
Rizvi probably thought there were some assets (because of roger's misleading filings and PRs). Likewise, he wrongly estimated the amount of shares ($$$) it would require to own the company - this error again facilitated by roger's sneakiness. Thus Rizvi thought he was getting the proverbial, "something for nothing" - millions in assets for pennies on the dollar. By the time he realized he got a shell with more problems than value, he already had $330k into it.
Yes it is possible he THOUGHT he was getting valuable assets. I'm sure he has since become aware of what he actually bought. But that doesn't matter. What matters is what he decides to do with the company now that he has it. Take the loss or be a hero.