Shark Tank star Kevin O'Leary doesn't mind if staff at his 54 companies work from home—and he certainly doesn't think it's "immoral".

More from Fortune: 5 side hustles where you may earn over $20,000 per year—all while working from home Looking to make extra cash? This CD has a 5.15% APY right now Buying a house? Here's how much to save This is how much money you need to earn annually to comfortably buy a $600,000 home

When asked if working from home is unethical the Canadian businessman—reportedly worth $400 million—responded simply "no."

It comes following a rant from Tesla and Twitter owner Elon Musk, who questioned if it was "morally right" for some people to work from home where others, such as delivery drivers and factory workers, cannot.

"[It's] messed up," Musk said in an interview with CNBC. "It's a productivity issue but it's also a moral issue. People should get off their godd*** moral high horse with their work-from-home b****** because they're asking everyone else to not work from home while they do."

O'Leary is more open to the policy—a tactic which may make him more popular with staff, as a recent study from McKinsey & Company found that 87% of the American workforce would choose to work somewhat flexibly if the opportunity was offered to them.

McKinsey added: "Employers are wise to invest in technology, adapt policies, and train employees to create workplaces that integrate people working remotely and on-site."

"The world's changed," O'Leary told CNN. "The economy's changed, the ethics of work have changed. We went through an extraordinary period during the pandemic—the idea that you'd split up a headquarters and you'd let people leave a headquarters to work from home was not even contemplated. It was considered too risky.

"Now it's a proven, effective method or project management."