Even this significantly damages industrialists.
If you make ships rebuildable it removes the need for multi-billion ISK BPOs, except copies for invention, and would make salvaging preferable to new builds handing the entire T1 ship building market to the small number of PvP groups able to clean up after a large battle.
If you add just mineral recovery you significantly damage mining income.
You also add a massive target to mission runners who tend to fly expensive semi-blinged-out battleships. All those golems become far more valuable to kill because of their potential salvage value. Ganking increases significantly. Ganking of mining vessels and haulers also becomes more profitable despite adding no risk to the ganker, who can also come back to salvage their own wreck to further minimise their costs and increase their profits. So as a salvager, getting your salvage to market becomes more difficult, as you die on the Perimeter gate. Doesn’t matter so much what you’re carrying anymore, your hauler itself is worth more dead, so the risk is more worth taking.