For better or worse, PowerPoint is the tool of choice for making presentations. When anyone gives a presentation with dense, complicated, unreadable, illegible and otherwise horrible-horrible-horrible presentation charts, they are demonstrating sheer professional incompetence.
In case you can't tell, I get kinda worked up about this.
For all the time we spend giving and receiving briefings, it's inconceivable to me that honing one's presentation technique is not treated as an important discipline and a core element of professional development. I've even seen professional educators, who brag about their ability to facilitate discussions and interact with audiences, use powerpoint charts that are frankly embarrassingly bad.
This stuff isn't hard. Sure, it's a little bit more work than doing it badly, but once you get the hang of it, it's not bad. Go check out Garr Reynold's Presentation Zen blog for some great examples of how to do it right.