Can't really understand why you bother with nit-picking these arguments Teribus
Bin Laden left $29m on his death, deposited in Sudan, where he lived until he was deported.
One of instructions of the distribution of his legacy read:
"Another 1 percent of the sum should be given to a second associate, Engineer Abu Ibrahim al-Iraqi Sa'ad, for helping set up bin Laden's first company in Sudan, Wadi al-Aqiq Co, the document said."
Reuters.
He was a businessman - he owned at least one company, "first company" suggests he had several - they appear to have been connected with engineering
He no doubt used some of the profits of that company to fund his other activities.
Nit-pick your way out of that one
Now perhaps we can move on.
Jim Carroll