AFAIK Ecojet is still operating.
Re Quiroga salary.
According to his father-in-law Pinto, at least 4 of the crew were not being paid at some point.
“Upon receipt of the proposal to form the company, it teamed with other former military pilots like him, and formed the company.They took out loans in the bank to pay Bisa insurance of the ship and civilians, and all that corresponds in the proceedings, only then could rent the aircraft. He is not guilty as they want to accuse "he added. Eight months ago he and his four associates who formed his crew could not pay their own salaries.
Piloto de LaMia pasaba apuros económicos | Noticias de Bolivia y el Mundo - EL DEBER
(Don't know if Pinto is believable but the company's financials were accessed by journalists last week. On paper, they had about US $16k.) Anyway if it's true, perhaps it helps add another explanation to this shared denial & risk-taking?