the smaller teams should slowly catch up to the big teams infrastructure wise because the teams with better facilities have less room to improve when spending the same amount of money

I don’t think this is totally true. Technology marches onwards always, and while newer tech is more expensive, the teams out front are spending every cent to get further ahead, whereas the disadvantaged teams are playing catch-up.

Tech development would have to stop for the back teams to catch up in a reasonable timeframe. Relying on the asymptotic nature of improvement probably isn’t enough.