I have zero respect for the slime-ball known as Bill Gates. He taxed the computer industry by charging for a copy of Windows to every PC sold even if it didn't run Windows but ran Unix or Linux, if the seller refused the deal they would have to pay the exuberant price of a standard Windows OS for their Windows units, would take them out of business. He used Office and Windows to kill competition, and to marginalize the Mac platform.
He copied Netscape, ruined the browser playing field, and purposefully worked against browser standards in an effort to make other browsers incompatible with the monopoly of IE (95+% of the browser market). Attempted to kill QuickTime, JAVA (Which was an idea beyond what it is today), and many other technologies.
The DOJ case against MS of the 90's was to consolidate the hundreds of bad business practices suits brought against MS into a single lump-sum, in the end MS got a slap on the wrist and were to continue doing whatever they were doing. The US Gov in return got backdoor access to any Windows machine worldwide, this was evident with the three Windows NT backdoor entrances found in one of the Service Packs. It wasn't until SJ came back and made Microsoft look outdated and obsolete, yet still Bill Slime-Ball Gates was attempting to take credit for Apple's technologies like the iPad.
His efforts for helping the world, is for Tax purposes, if you think it's because he's a nice guy, you probably don't know a super-rich person. If Gates wanted, Africa would've started to turn around a decade ago.