Ghosn also cast doubt on the reboot of the alliance between Renault, Nissan and Mitsubishi following his removal as chairman at all three automakers.
"I'm worried because obviously the performance of Nissan is declining," he said. "But also, I'm worried because I don't think there is any vision for the alliance being built."
Ghosn's arrest cast a shadow over the future of the 20-year tie up, which Ghosn built into the world's largest auto group. Nissan and Renault eye each other with suspicion.
But last month, the leaders of the companies tried to mend relations by forming a new consensus-based four-person board to run operations, in place of Ghosn's one-man rule.
Ghosn took a dim view of that effort.
"Frankly, sitting down there on the table, being consensual about decision, this is not a vision in an industry which is as competitive as the car industry," Ghosn said. "You need to make sure that from time to time, leadership is exercised. And leadership means we do what's good for the company, not what you are capable to agree on. This is not dictatorship. This is leadership."
After the release of Ghosn's video, Nissan issued a statement saying the "sole cause of this chain of events" was Ghosn's alleged financial misconduct.
"Aside from any criminal matters, Nissan's internal investigation has uncovered substantial evidence of blatantly unethical conduct," Nissan said. "Further discoveries related to Ghosn's misconduct continue to emerge. The company's focus remains on addressing weaknesses in governance that failed to prevent this misconduct."
Prosecutors arrested Ghosn for a fourth time on April 4, on breach of trust suspicions for allegedly causing some $5 million in damages to Nissan from December 2015 through July 2018, while Ghosn was CEO and chairman of the Japanese automaker.
The sweep landed Ghosn, 65, back in the Tokyo detention center where he spent 108 days following his initial arrest Nov. 19. Ghosn was released on a $9 billion bail on March 6 but was free for less than a month before being re-arrested on the new, more serious charge.
The arrest came just a day after Ghosn took to Twitter to say he would hold a press conference on April 11. But his detention stymied plans to meet the press in person.
A Tokyo court approved the extension of his detention through April 14. After that, prosecutors may ask for another 10-day extension, which would have to, again, get court approval.
Planning for such a contingency, Ghosn's lawyers made the video message before the arrest.
The latest arrest focuses on allegations Ghosn diverted company money for personal gain.
In their public filing, prosecutors said Ghosn arranged to have some $15 million transferred from a wholly-owned Nissan subsidiary to a bank of an overseas sales representative.
Prosecutors allege that Ghosn then received a portion of those funds for his personal use through a bank account of a third company where his wife works.
Prosecutors said $5 million of those transfers from Nissan was diverted to Ghosn's personal use, and they allege the same amount of financial damage was incurred to Nissan.
Prosecutors have already slapped Ghosn with three indictments, two for allegedly misreporting tens of millions of dollars in deferred compensation and a third concerning alleged breach of trust.
He faces up to 15 years in prison if found guilty.
In the first two indictments, Ghosn is charged with falsifying company financial filings to hide some $80 million in deferred compensation. Ghosn has said that the amount was never fixed, nor were any funds disbursed. Thus, he argues, there was no need to report anything.
Ghosn's breach-of-trust charge allege that he temporarily shifted 1.85 billion yen ($16.5 million) in personal swap contract losses to Nissan and had Nissan pay $14.7 million out of the CEO Reserve to a business associate who allegedly helped Ghosn clear the red ink.
Ghosn says the contract transfer caused no damage to Nissan and that the payments to the business associate were for legitimate services rendered to Nissan in the Middle East.