If you somehow arrange for a redistributive effect. But in practice, the firms are likely to charge each consumer the maximum that consumer can afford. These firms are not engaging in some philanthropic process here.
If you want redistribution, implement a wealth tax.
Are there any examples of markets where price discrimination is good for the average consumer? Airline travel is the one that pops to mind - first class customers pay well above marginal cost and effectively subsidize the cattle class, right?