A senior engineer explains why they no longer intervene in every flawed project they spot. Being right and being effective are different in large companies. Arguing with teams that won't listen wastes influence. The goal isn't to stop every mistake, but to pick battles that matter.

Bad projects often fail from political missteps, not technical flaws. The author recalls a Google project that seemed brilliant but demanded a product team surrender core control—a move no lead would accept. It died quietly after two years. Politics and solving the right problem outweigh technical elegance.

Like a bank account, influence must be managed. Constant nitpicking (the $5 check) drains resources needed for major interventions (the $50,000 check). Overdrawn, you become politically bankrupt. The key is strategic silence: save your voice for true disasters, not every minor inefficiency you see.