Imagine being able to inspect and study the remains of captured ships of higher tech to get a small buff to the research of that tech
Like, the larger the ship and closer level tech would give a larger bonus to that tech,
for example a 2k 1 tech level higher ship it would give a good ~25% research bonus to 1 of the techs onboard the ship you don't have.
Example 2: You capture a ship with gatling guns, you dismantle the ship for study, you get 25% of machining tech learned, downside you only get the bonus for one of the techs onboard.