You're putting a lot of strange qualifications on whether you consider a company to be a capitalist entity. Why must it be publicly traded? Why must "rich owners" profit to the optimum extent (and how do you quantify that)?

I don't agree with your criteria. And asking for "lifetime" warranties is not what you originally claimed.

But, looking around at some of the "highly durable" objects I have that were made by profit-seeking companies:

- books

- furniture (Møller teak chairs from the 60s)

- All-Clad pans, Le Creuset enamel dutch oven

- Wüsthof chef's knife

- Barbour waxed cotton jacket

- Iron Heart denim

- Good, repairable shoes (Crockett & Jones, Oakstreet Bootmakers)