Yes, you can, absolutely. You'd be risking that your DTV might be rejected, but that's the "only" thing that could happen. About entering, you can enter.
the DTV is nothing like a retirement visa and the money doesn't need to stay at a specific account. Also, remember it can be at any account of any country or the world.
La diferencia es que la persona que aplica como dependiente, tu esposo en este caso, no debe cumplir ninguno de los otros requisitos, como tener un trabajo remoto, o estar inscrito en cursos de muay thai o cocina, o recibir tratamiento médico. No obstante, el requisito de que cada persona que aplica tenga ahorros equivalentes a 500.000 baht es otra cosa. Que yo sepa, no es algo exclusivo de la embajada en Argentina.
The 10 year tourist visa isn't like a game changer, or at least not a new idea. The US tourist visa has been always a 10-year one. However, it only allows stays of up to 6 months at a time, maximum, and of course, working is banned. I'd assume it'd be the same, with officers (either in the US or here in Thailand) not letting the people in if they come for 6 months stays back to back year after year.
each application on the visa portal is Embassy-dependant. They're routed to the specific embassy, and that's why they have different price, requirements, timing and conditions. The visa is approved or rejected by a specific embassy.