Assange made the decision to move into the embassy in London after losing his battle against his extradition to Sweden, where he faced allegations including rape.
In an interview published by The Guardian newspaper, Ecuadorean President Lenin Moreno rejected claims that he had allowed for Assange's arrest as a reprisal for WikiLeaks purportedly leaking documents that sullied his name, including claims of secret bank accounts and hidden wealth.
"And to suggest that someone would choose to remain in there without legitimate concerns about United States extradition, which is exactly what was proven this week, I think people can't really understand what it would be like to live in a room like that for a very long time".
Moreno and other Ecuadorian officials accused Assange of interfering in the affairs of other states while at the embassy, abusing staffers and not taking care of his room and belongings.
She added: "He's not above the law. This case is and has always been about his concern about being sent to face American injustice".
The US indictment charges Assange with "conspiracy" for working with former US Army intelligence analyst Chelsea Manning to crack a password stored on Department of Defence computers in March 2010.
"Assange's attitude was absolutely reprehensible and outrageous after all of the protection provided by the Ecuadorian state for nearly seven years", Moreno said.
Williamson spoke to Sputnik at the scene of a second day of protests outside London's Belmarsh Prison, which now houses Assange.
Two left-wing German lawmakers, Heike Hansel and Sevim Dagdelen, along with Spanish MEP Ana Miranda were expected in London on Monday when they were originally set to meet Assange at the embassy.
Instead, following his expulsion and arrest last week, they protested outside the top-security Belmarsh prison in southeast London where he is being held, carrying placards demanding his release.
Manning passed hundreds of thousands of classified documents to WikiLeaks, exposing U.S. military wrongdoing in the Iraq war and diplomatic secrets about scores of countries around the world.
He has not formally responded to the US conspiracy charge.
Assange faces up to 12 months in prison after being found guilty of breaching his bail conditions when he entered the Ecuadorian embassy in 2012.
The always-curious minds that populate USA and United Kingdom newsrooms have instantly accepted and promoted the notion that it was not extreme pressure from Washington that prompted Ecuador to finally push the eject button on Assange's stay, it was obviously this convenient "misbehavior" that got too much for them.
Assange's father, John Shipton, on Sunday urged Australia to bring his son home.