Sorry, Dave, I stand by my statement -- it's possible to ruin anything by putting too much power in. That's the answer to the question the OP asked. And, it applies to any closed thermodynamic system, even the US Congress. It's irrelevant how that power is increased. There was no statement about e.g. a constant voltage.
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so you by your reasoning, you expect all 0.5 A plugpacks to expire when on a mains system that can 10's of amps more than what is required ???
and all my radio gear running on 12V, 10 Amps to burn up when on a 100A power supply huh ?
interesting universe you live in
Dave
the problem is you are using the word power as was the OP which is where the confusion is. There is NO X number of Watts going in, only Watts of power being used by the appliance, when a given voltage is being supplied and a given current is being drawn