Over the long term, there really isn’t. Outside of a government imposing tyranny-tier control over everyone’s wealth, wealth inequality happens naturally, and inevitably, and the gap widens similarly.
What’s more important is making sure that even the poorest among us can have a decent standard of living. After all, if you waved a magic wand and now everyone in the US, for example, was earning $75,000 a year minimum, no one would be in poverty, right? And yet the size of the ‘wealth gap’ between the wealthiest and the $75k ‘minimum earners’ would effectively be identical; the gap between $0 and billions is basically the same as the gap between $75k and billions.
Toppling the wealthiest just because they’re the wealthiest isn’t going to solve any of the actual problems (especially when politicians get bribed for relatively-measly five figure sums, etc.).