NaibofTabr

Sure, then you get outbid by another contractor who is willing to cut corners.

This assumes several things to be true, which might not be true:

• power is available/the upstream circuit is on (always a bad assumption to make)
• the bulb is an incandescent type that will generate an appreciable amount of heat in a short amount of time
• the bulb was in the off state before you changed the position of any switches, and has been off long enough to be cold
• the bulb is connected to any of the switches
• the bulb is connected to only one of the switches (parallel circuits are a thing, as are multi-switch lighting circuits)

If any of the above is not true, the conclusion is invalid.