Na. It is basic envy at work. Too much focus on what others have which you do not and not doing enough to improve your own situation.That's a bullshit implication.
The argument against high wealth inequality has nothing to do with envy. It has to do with having a healthy and functional economy, which serves those who compose it. In a situation with high (and growing) wealth inequality, and stagnating wealth levels for better than the lowest 90%, you have an economic system that is not healthy and functional; growing productivity is not serving to benefit all, but only serves to benefit the already-super-wealthy.
Adam Smith envisioned that a capitalist economic system would work against this by fostering competition, both in terms of product pricing and wage valuation, but in practice, it has not happened, because there's a continuous oversupply of labour. Which means that the system is not functioning properly, as a capitalist economy. Smith was clear, in Wealth of Nations, that the producers in a capitalist system solely exist to serve the interests of the consumers, who are those the system is meant to uplift. And wealth derived by producers was meant to be incidental to that process, a happy accident, not the main focus of the economic engine, as it is today.
You don't even have to dig into competing economic theories; this is definitively broken as a system by capitalist principles, too.