Rich people preserve wealth, mostly. Higher taxes correlate with higher economic growth, just look at GDP by year and compare with the highest marginal tax rate. This may or may not mean that higher taxes on the rich create higher GDP, but it certainly proves that high tax rates don't harm GDP.
If someone tries to feed you clever one-liners, demand evidence. If someone tries to quote a prestigious economist, double check it for context.
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"I find that the best way [to increase self-confidence] is to lie to yourself about who you are, what you've done, and where you're going." - Richard Ayoade