"もし私たちが金銭的な動機で動いていたら、私たちはとっくの昔に会社を売却してビーチに行っていたでしょう。"

Simplified Meaning:

When someone says that if they only cared about money, they would have sold their company and gone to relax on a beach, they mean that their main goal isn't to get rich quickly. Instead, they are passionate about their work. For example, think about a teacher who loves helping kids learn. If they only cared about making a lot of money, they might choose a different job that pays more, like working in business. But because they love teaching and making a difference in children's lives, they stay in their job even though it doesn't make them rich. This shows that their passion and dedication are more important to them than just earning lots of money. So, the advice here is to find something you truly care about and stick with it, rather than chasing money. This way, you'll likely find more happiness and fulfillment in what you do.