Ben's use of the Force against the Stormtroopers (and then Luke's use against Jabba and co) always seemed to me to be more on the Dark Side than anything else. I couldn't imagine Yoda using the Force to manipulate someone with a weaker mind, as it seems like a "might makes right" ability.

So when Ben basically steals money from the shopkeeper, and then acts all holier-than-thou by claiming that he is above the use of money, it seems horribly wrong. Could he really think of no better way to get some money?

When Ben uses this suggestion to guide Luke's movements on the Falcon, this suggests that Luke is weak minded, otherwise it wouldn't have worked. It also raises an interesting question: If Luke was guided by Ben in his use of the Force, instead of drawing on it of his own volition, does that mean that Ben was guiding him when he made the Death Star shot?

As a side note, the RedLetterMedia commentary of ANH had Han getting a bunch of awkward to use semi-precious metals from the Rebels in return for his services. Turns out that this is exactly what happened in the radio drama. I thought that was funny.