I think the problem is that when most people picture the Light Side of the Force, they picture these soulless automaton monks who are forbidden from love, forbidden from attachment, forbidden from fun itself. What they tend to forget is that one of the greatest Jedi Masters to ever live was not any such person.
See, all those boring precepts people generally associate with the Jedi- those represent an old way that no longer exists in Luke's time. Luke is a masterful practitioner of the Light Side of the Force, but because he's also a human being, he feels emotion. He lives, he loves. He even has a child, later in his life. He's not perfect. He's fallible. It doesn't make him any less of a Jedi, and it certainly doesn't make him a practitioner of the Dark Side, despite what the old ways might have you believe.
Ultimately, the choice between the Light Side and the Dark Side isn't about powers- it's about how you choose to employ them. A Jedi can use Force Lightning as easily as a Sith can use the Force to heal himself. At the end of the day, it's all about action, what you do with the power. Given that, it doesn't seem very difficult to make the choice of not being a dick to everyone.

See, all those boring precepts people generally associate with the Jedi- those represent an old way that no longer exists in Luke's time. Luke is a masterful practitioner of the Light Side of the Force, but because he's also a human being, he feels emotion. He lives, he loves. He even has a child, later in his life. He's not perfect. He's fallible. It doesn't make him any less of a Jedi, and it certainly doesn't make him a practitioner of the Dark Side, despite what the old ways might have you believe.
Ultimately, the choice between the Light Side and the Dark Side isn't about powers- it's about how you choose to employ them. A Jedi can use Force Lightning as easily as a Sith can use the Force to heal himself. At the end of the day, it's all about action, what you do with the power. Given that, it doesn't seem very difficult to make the choice of not being a dick to everyone.