Germany has 20x our population, France is not far off it. Neither has anything close to the job market per capita in the IT and Services sector that Ireland has.
As for us dragging ourselves up, that has more to with our special relationship with the US. The EU were initially helpful with infrastructural development, access to a Common Market, and to drag us out of the Vatican Law era, but we gave up a huge amount of fishing rights to do so - massively enriching spain, portugal and france who had overfished their own waters. Note also we're not part of Schengen, but maintain a CTA (Common Travel Area) with the UK.
Eventually the EU took the legs out from under us in 2008 and forced us at gunpoint to bail out unsecured german bondholders to maintain the integrity of the Euro and prevent a contagion run on German Banks.
Irelands FDI sector was highly developed in the late 80s and combined with entities like Enterprise Ireland - ranked first in the world of venture capital investors by deal count in 2020 - hammered home the advantage via our highly-educated English speaking workforce and relatively low cost of living. Even now the number of investments completed by Enterprise Ireland was 42% more than its nearest competitor, French sovereign wealth fund Bpifrance.