In any competitive arena, there will always be those who are willing to do whatever it takes to win. They bend the rules or take shortcuts. Basically, when there's a lot of pressure or money at stake, people will show you who they are.
While giving the rules the runaround might earn people short-term benefits, most of the time it doesn't lead to long-term success, in my experience. Developing a reputation for aboveboard business practices is critical to earning the respect of your peers and competitors. I've dealt with enough competition in life that I'm able to keep a level head and recognize that an immediate loss could lead to greater success down the line.
Be focused on solutions, but remember that it's about more than the final outcome. Is a win without integrity really much of a win? Golf is a game of honor, and it's taught me to approach business decisions with the same sincerity.