"Personal assets" is the same as saying his personal property
If you consider "personal assets" to mean whatever you have direct access to, then I guess everything in your neighborhood could be considered your personal assets. After all, how hard is it to get "direct access" to your neighbor's stuff if you really wanted to?
Other than rule the country for 20 years or so, what would Saddam do to earn a billion dollars? Likewise, how could someone like Marcos accummulate hundreds of millions of dollars on an annual salary of less than $10,000 a year unless he was a thief?
As for your other remark, why would I be anxious about pointing out that Saddam was a world-class thief as well as a thug?
