Of course you can. Mining is basically a lottery anyway, better equipment just lets you buy more tickets.
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I wish better equipment is just simply buying more tickets - but we all know there's more to it...they essentially force all individual miners out of business - they change the way the lottery being drawn, they have the power to (almost successfully) changing the lottery rules of engagement...I don't think this is just a simple case of buying more tickets in hoping to get a better change of winning at the present time, but to influent the future winning.  Specifically in favor for one group of people vs the rest of the population.  We could call it what ever we'd like, but in reality, it is just flat out monopoly !

I also know enough to embrace the idea of competition and reward to advance technology and serve the common interests.  But competition should not impede progress, as some of us whose have been around long enough to see the effect of VHS vs Beta format or Windows vs Linus...and having to cough up to $300 for a marginal operating software for your PC.