Chris, I like the poignant analogy but I think that your concern is everyone's concern. The question is whether or not we can build cultures and institutions that allow us to utilize "power tools" to engender flourishing, while simultaneously safe-guarding us against mailce and folly.
my concern is the our culture acceleration. the negative impact of power is mitigated by slowing down and retaining a committment to diligence. the current paradigm existentially forces this dangerous acceleration because we are all absolutely aware that if "i don't get it done first" somebody will sweep in tomorrow at take the cake.
I think competition can be allowed to persist so long as it is counterbalanced by institutions whose purpose it is to ensure that it does not give way to wrecklessness. For example, if the EPA was even close to as robust an organization as the FDA, fracking with chemical leakage would unlikely have ever made it to market. I share your concerns but see them less as a problem stemming from competition, and more as a political shortcoming resulting in an inability to appropriately regulate markets.