…ときたひには => when it comes to N2
Story topic
ひとつには…ためである => Partly because of ... N3
Cause, reason
…たりしたら/しては => ... Such as N3
Demonstrate by example
ひとつ => A little N3
Repetition, habit
ただし/ただ => right; correct. N2
~ひいては => by extension N1
Add
としたところで/としたって/にしたところで/にしたって => Even if; Even supposing that ~ N1
ました => Did something... N5
Conjugate verbs
~ひょうしに(~拍子に)   => the moment [A], unintentionally / inadvertently caused something to happen N1
ぜひ => by all means; certainly; definitely ~ N5
ひじょうに => very; extremely; exceedingly N3
Description
もし~としても/もし~としたって => Assuming; Even if ~ N3